Workshop: Make your own artwork with light and cyanotype
Explore the magic of light and take home beautiful works of art when the Round Tower opens its doors to a creative cyanotype workshop on the first Sunday of the autumn holidays.
Come and create celestial images during the autumn holidays. Cyanotype, also known as blueprinting, is an early photographic technique that creates unique images in shades of blue using light and iron-based chemicals. The technique is easy to try: a light-sensitive solution is applied to paper or fabric, objects such as plants are placed on top, the material is exposed to sunlight or UV light, and finally rinsed in water.
On the first Sunday of the autumn holidays, bring your family or a good friend along, make your way up the Round Tower, and try your hand at creating beautiful blue images — naturally with a celestial theme.
Everyone is welcome
The workshop is led by Mai-Britt Amsler, a graphic designer and illustrator from the Design School, who is experienced in teaching techniques including screen printing and cyanotype. Everyone, regardless of experience level, is welcome to join, and the tower provides all the necessary materials. Of course, you can take your artwork home with you.
The workshop is a drop-in event from 12 noon to 4 pm. Please note that there may be a waiting time when there are many visitors at once. The workshop is included in the regular admission fee, which also gives you access to the current exhibitions, a trip to the top for the spectacular view, and a little taste of history along the way.
Workshop: Paint Black Holes with Light
Meet researchers from the Center for Gravity at the Niels Bohr Institute and explore the fascinating world of gravity as we create striking images of black holes painted with light.
A black hole is a region in space where gravity is so strong that nothing can escape – not even light. Yet scientists can still study them by observing their surroundings: watching stars orbit them, detecting ripples in spacetime when black holes collide, and even capturing images of light bending around them. In this workshop, you’ll discover how researchers observe black holes and learn more about these mysterious cosmic phenomena.
With guidance from experts from the Center for Gravity at the Niels Bohr Institute, you’ll design your own black hole on paper before bringing it to life by painting it with light. By keeping a camera’s “eye” open for a long time, it can collect more light – the same technique used to capture spectacular images of distant nebulae and galaxies. Using this method, along with a variety of light sources including flashlights and fairy lights, you’ll create your very own black hole. Afterwards, your finished image will be sent to your phone, or to the phone of the adult accompanying you, so you can keep it as a souvenir.
The workshop is part of Black Hole Week, organised by the Center for Gravity, a Center of Excellence at the Niels Bohr Institute dedicated to research into gravity, black holes and the most extreme phenomena in the universe.
The workshop takes place at Rundetaarn, is included in the standard admission ticket, and requires no advance booking. The workshop facilitators speak both Danish and English.
guests will also have the opportunity to explore the exhibitions Refractions of Ice and Ole Rømer and the Great Discovery, Rundetaarn’s introductory exhibition. Visitors are also welcome to walk up the beautiful Spiral Ramp to the top of the Tower and enjoy the panoramic views over Copenhagen.
The workshop is part of Rundetaarn’s LIGHT YEAR 2026 programme, marking the 350th anniversary of Ole Rømer’s discovery of the speed of light.
Monster workshop with Shane Brox
Fangs, scales, or a serpent’s tongue? Bring mysterious and monstrous creatures to life when multi-artist Shane Brox invites you to an imaginative and creative monster workshop at the Round Tower.
Using quirky materials, colors, and shapes, children and adults can create their very own monsters with exactly the features they find most frightening. The workshop is a playful free space where imagination takes the lead, and where even the strangest ideas can become fantastic and terrifying creatures.
Shane Brox is a multi-artist who has created television programs and written children’s books. He makes sculptures in many different forms and sizes, working especially with recycled materials. Throughout the workshop, Shane will offer help, advice, and creative ideas.
The workshop requires no registration and is open to all little monsters and their grown-ups, with drop-in access throughout the event. Participation costs only the regular admission fee to the tower, and all materials are provided. Come and enjoy some spooky fun!
Also visit the exhibition
Need a breather? Take a walk through the current exhibition Refractions of Ice and explore patterns of ice crystals under polarized light. Perhaps the colorful, melting ice crystals will inspire your monster creation?
The workshop is part of the Golden Days Festival, where this years theme is “Monster.”
Family Workshop: A Shadow of the Universe
During autumn break, children and their parents can join a creative shadow-cutting workshop and contribute to a larger collage of cosmic stories.
Anything is possible when Tomas Lagermand Lundme, author and visual artist, create shadow cuttings and shadow motifs in different forms of cut-outs together with the workshop participants.
The various cut-outs of shadows and shadow stories are continuously assembled throughout the event into a larger collage of cosmic tales about the shadows we each carry, whether they are short or long, or both.
It is sure to be a moving, humorous, and whimsical afternoon.
The workshop is open to everyone, and you are free to come and go as you like, participating for as long as you wish. No prior experience is required – only the desire to play along.
Drop in-workshop for children: Make your own Runestone
Unleash your imagination and create your own runestone.
In connection with the exhibition The Lost Runestones, children and their adults are invited to drop by The Round Tower and create their own miniature runestones out of clay. Get inspired by the exhibition’s unique interpretations of the runestones lost in the Copenhagen fire – or come up with your very own version of a runestone.
You can learn to spell your name in runes – or even invent a brand new symbol. We’ll be working with self-hardening clay, so once your runestone is finished, it’s ready to take home with you.
The Round Tower provides all the materials, so just stop by during your visit. The workshop is free and runs as a drop-in event between 12 PM and 4 PM.
Please note that the workshop will be held on several dates throughout the summer.
Drop in-workshop for children: Make your own Runestone
Unleash your imagination and create your own runestone.
In connection with the exhibition The Lost Runestones, children and their adults are invited to drop by The Round Tower and create their own miniature runestones out of clay. Get inspired by the exhibition’s unique interpretations of the runestones lost in the Copenhagen fire – or come up with your very own version of a runestone.
You can learn to spell your name in runes – or even invent a brand new symbol. We’ll be working with self-hardening clay, so once your runestone is finished, it’s ready to take home with you.
The Round Tower provides all the materials, so just stop by during your visit. The workshop is free and runs as a drop-in event between 12 PM and 4 PM.
On this Sunday, you can also enjoy sun gazing from the top of the tower. Our observatory staff will make it possible to safely view the sun with a telescope fitted with a special lens.
Please note that the workshop and sun gazing will be held on several dates throughout the summer.
Drop in-workshop for children: Make your own Runestone
Unleash your imagination and create your own runestone.
In connection with the exhibition The Lost Runestones, children and their adults are invited to drop by The Round Tower and create their own miniature runestones out of clay. Get inspired by the exhibition’s unique interpretations of the runestones lost in the Copenhagen fire – or come up with your very own version of a runestone.
You can learn to spell your name in runes – or even invent a brand new symbol. We’ll be working with self-hardening clay, so once your runestone is finished, it’s ready to take home with you.
The Round Tower provides all the materials, so just stop by during your visit. The workshop is free and runs as a drop-in event between 12 PM and 4 PM.
Please note that the workshop will be held on several dates throughout the summer.
Drop in-workshop for children: Make your own Runestone
Unleash your imagination and create your own runestone.
In connection with the exhibition The Lost Runestones, children and their adults are invited to drop by The Round Tower and create their own miniature runestones out of clay. Get inspired by the exhibition’s unique interpretations of the runestones lost in the Copenhagen fire – or come up with your very own version of a runestone.
We’ll help you learn how to spell your name in runes – or even invent a brand new symbol. We’ll be working with self-hardening clay, so once your runestone is finished, it’s ready to take home with you.
The Round Tower provides all the materials, so just stop by during your visit. The workshop is free and runs as a drop-in event between 12 PM and 4 PM.
The workshop will also be held on Saturday, July 19.
Family Culture Night at the Round Tower
Calling all children interested in the Universe, stars and planets! On March 14, we are hosting Family Culture Night at the Round Tower, where all children (and their families) are invited to join fun activities in the Spiral Ramp, a planet workshop and stargazing in the Observatory.
Exploring the Tower and Creative Planet Workshop
In the Round Tower’s iconic Spiral Ramp, you can travel with light through the solar system and explore the planets. Along the way, you can solve small tasks and talk to the Round Tower’s astronomy students, who will teach you more about the movement of the solar system, the speed of light, and constellations.
In the Library Hall, you can discover Jakob Arthur Andersen’s captivating astrophotos, while in the old reading room, you have the opportunity to unleash your creativity and create your very own lifelike planets – both on paper and on sticks! The Round Tower provides colors, tools, and drawing kits, but you decide what patterns and colors the celestial bodies should have.
Visit the Observatory at the Top
The Observatory, located in the historic domed building at the top of the tower, will be open for visitors. Here, you will find the 95-year-old telescope, which the Round Tower’s astronomers will use to zoom in on celestial bodies many light-years away in the Milky Way. If we are lucky, both Jupiter and Mars will be visible in the sky that evening. Don’t forget to dress warmly!
Please note: There is limited space in the Observatory, so a queue may form. The Round Tower cannot guarantee that we will be able to see celestial objects through the telescope if, for example, the sky is cloudy. However, if the weather does not cooperate, the Observatory will still be open, and our astronomers will share fascinating insights about the Observatory and the large refracting telescope, which has a magnification range of 80-450 times.
This evening you can only access with a Culture Night Pass. A Culture Night Pass for Family Culture Night 2025 can only be purchased digitally via kulturnatten.dk. It costs DKK 125 and gives you access to all the events at Family Culture Night and allows you – free of charge – to take two children under 12 years old with you. In addition, the Culture Night Pass ensures for the Pass holder and for two children under 12 free transportation by bus, train and Metro in Greater Copenhagen zones 1-99.
Drop-In Workshop: Create Your Own Scenography
With inspiration from the current exhibition “The Tryouts” and theater painter Carl Lund, who had his painting workshop in the Library Hall in the early 1900s, we will create our own miniature stage designs in this workshop!
Test your skills as a theater painter as we use various forms of cardboard, paper, paint, and cutouts to craft our own alternative worlds, where new interpretations of reality can unfold. What story would you like to tell, and which characters or figures will be part of it?
The workshop is led by Simone Syska Andersen, a creative consultant, art communicator, and educator with several years of experience in the museum world.
Participation is free with the regular admission to the tower, but seats are limited. If the workshop is full, we recommend taking a stroll through the exhibition, which is also included in your ticket, to gather inspiration, and coming back afterwards.
