In the VRML. 2.0 model of Rundetaarn you can click on different parts of the picture and, among other things, see the Library hall from the inside and travel to our stellar neighbours.

VRML 1.0

• The Round Tower.

VRML 2.0

The Round Tower The Library hall Our neighbours The Earth/Moon

Tycho Brahe - Castle, Observatory and instruments.

Uraniborg (at daylight) Uraniborg (by night) Stjerneborg (inside) The great equatorial armillary instrument. Great steel quadrant. Equatorial armillary instrument. Revolving azimuth instrument. The bipartite arc for measuring small angular distances of stars. The sekstant for measuring angular distances of stars. Instrument for measuring angular distances of stars.

Instruments of Ole Rømer

His domestic instrument in St. Kannikestræde. The Transit-instrument. The first meridian-circle in Vridsløsemagle. The first meridian-circle. The Roundtower Observatory anno 1690.**) The first equatorial instrument from The Roundtower Observatory. Revolving azimuth circle from The Roundtower Observatory.

Here is the tower in Google sketchup, download and press (you got to have Google Earth and Sketcup installed).

^*) Virtual Reality Modeling Language
^**) The picture of this observatory was used as a logo on the calendar until 1860, in defiance of it burning in 1728. And because of that, Hans Christian Andersen was understood when he in "The Tinderbox" writes "The dog that sits on this third moneychest has eyes as large as the Round Tower".