This gateway to subterranean Hanover plays jazz, pop and rock to surprised passersby.

A slice of central Asia in the middle of Berlin.

The most visited, and possibly most controversial, museum in Germany.

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

Gardens representing parts of Asia, Europe, and the Mid East are tucked away among the Soviet-style buildings in East Berlin.

A prime example of socialist modernist architecture, wrapped in a enormous fresco about the media.

Check the time in 145 countries at once with this East German relic.

A socialist building dedicated to teachers showcases one of the largest Soviet mosaics in the world.

A massive relic of the communist era of Berlin.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

The pile of books behind the dignified writer gave the statue a most undignified nickname.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

An iron dragon with a long neck covered in feathery scales perched above one of Venice's most popular squares.

This sprawling Jewish cemetery is one of the largest in Europe.