This once-derelict building is now one of the most beautiful bookstores in the world.

This celebration of Latvia’s freedom and independence avoided demolition over half a century of Soviet occupation.

A small museum contains one of the largest collections of ethnic and traditional headgear in the world.

With over 10,000 lights, this engineering marvel lights up the city after dark.

A small but hugely whimsical theater where marionettes play out the "The Battle of Stalingrad."

A cluster of historic bathhouses built on the famed hot springs that gave the Georgian capital its name.

The charmingly disheveled clock tower of Tbilisi's puppet theater.

This small shrine is dedicated to the designer of the first Russian fighter jet and his brother, who became Chairman of the Presidium of the Supreme Soviet.

An ancient knight and a symbol of the city's freedom.

An eclectic art form practiced by untrained masters is celebrated at this museum in the heart of Zagreb's old Upper Town.

One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

Yugoslavia's biggest underground airport lies in ruins.

Now harmless, this looming post struck fear into the heart of medieval troublemakers.

A musical instrument played by the sea.

An unrecognized micronation declared by Greenpeace to protect the glaciers of Chile.

The California secessionist movement has its own foreign embassy, in Russia of all places.

A miraculous three-handed portrait of a saint can be found inside this church.

The world's first invisible city square is an homage to a man who pushed the boundaries of art.

Ever-growing collection of devils in art.

Museum deep in the catacombs of St. Michael the Archangel Church is explored by touch, sound, and smell.

A memorial to the murdered Jews of Kaunas.

The train platform where Jews were sent to concentration camps is now preserved as a Holocaust memorial.

Milan's duomo is covered in beautiful carving including a curious "dinosaur-like" beast.

The enigmatic sculpture hides above an escalator in a Milan metro station.