Particularly notable is Jens Olsen's World Clock in a room to the right of the entrance:
What this masterpiece calculates and displays is truly remarkable. From planetary positions to global times and dates and much more.
Completely mechanical, it is now a museum piece as its functions have long since been superseded by atomic clocks and electronics.
Nonetheless, it is a marvel of ingenuity as it is one of the most precise of its kind anywhere. Its origins are inspiring.
Jens Olsen started out as a locksmith and was fascinated by a clock he saw while visiting Strasbourg in the last years of the 19th century. He vowed to create one for his homeland.
Over the next few decades he became a master clockmaker and developed the complex calculations required for his masterpiece.
Sadly, he died in 1945, ten years before the clock was set in motion by King Frederick IX and Jens' youngest granddaughter Birgit.
Different gears in the mechanism rotate from a quick ten seconds to an astonishing interval of more than 25,000 years. Provided the clock is wound every week.