The David Collection

It was raining like crazy today, so we figured it could be a good museum day.  Luckily there is a museum about a block away from our apartment, and even more luckily -- the museum is free admission every day!  C. L. David founded a museum to display his private collection of furniture, Danish art, and specifically his vast collection of art from the Islamic world.

At the museum entrance they give you each an iPad that reads barcodes on all the artwork and displays all kinds of information about each piece.  It was a very high-tech and modern way to look at some seriously ancient art (some of the Islamic pieces date to around 600 & 700 AD).

Speaking of technology, we were also fascinated by Copenhagen's World Clock.  It's over at the City Hall (which we visited a different day), but it was really worth a visit.  It's the most precise mechanical clock in the world.  It was completed in the 1950's and immediately rendered obsolete by the development of the atomic clock around the same time.

A locksmith-turned-clockmaker named Jens Olsen built it, and it is extremely elaborate.  It has 12 movements, and not only displays the time and date but also the movements of the planets, cycles of the moon, and even religious holidays.

Viewing the works from behind you can see all of the gears -- one of the gears turns so slowly that it completes a rotation only once every 25,753 years.