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.

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.

Extremely famous in his native country, this Cracovian painter is all but unknown beyond Polish borders.

Poland's oldest surviving university building holds a wealth of historic science instruments including some used by Copernicus.

The former Nazi Germany concentration camp stands as a museum to remember this dark chapter in European history.

An underground city of salt.

This Polish cave has housed a dragon, a brothel, and an enduring legend.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

Real bones which are said to have belonged to a Polish dragon.

Beneath Kraków Old Town's main square lies a hologram-filled medieval market vampire graveyard wonderland.