In the heart of Copenhagen, ... This observatory, perched at the top of the tower, allowed scholars to study the stars, fulfilling Christian IV's dream of advancing Denmark's scientific prowess.

In Copenhagen, the current UNESCO World Capital of Architecture, ... Climb the spiral ramp to the top of this city icon, built in 1642 as an observatory by King Christian IV, ...

Haydn In 1642, King Christian IV constructed a 118-foot tower in the center of Copenhagen to house an astronomical observatory. Today, the Round Tower remains a Copenhagen landmark and a tourist ...

The research, led by Dr Alan Grainger, outlines how a new body - named the "World Forest Observatory" - could use satellite images to map the world's forests and how they are changing.

"If governments at Copenhagen give their backing to a World Forest Observatory it could be a major outcome of the conference and be the first in a network of global environmental observatories ...

No one can say for sure how many of these glass plates have been created since the 1850s, but the Harvard College Observatory — the largest astronomical plate archive in the world — alone ...