A mysterious shape catches the eye in this 16th-century painting.

The medieval woodcut-style artwork chronicles life in medieval London.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

One part local history, 99 parts gruesome haunted house.

Danish observation tower designed to look like a giant beer bottle.

An ultra-modern diversity park in Denmark has turned an entire city block electric pink.

An unconventional and naturalistic sculpture depicting the artist marking his territory on an exterior faculty wall.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

The topiary maze at the Habsburg hunting lodge.

A neo-Gothic church built to thank God for saving the Emperor of Austria from an assassination.

The beautiful baroque library of the Hapsburg empire.

Baroque celebration of the end of the Great Plague of Vienna.

Op-art architecture designed for happiness.

A dismembered holy head stares out from her beautiful reliquary at the St. Dominic Basilica.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

Medieval torture techniques with a modern conscience.

A fearsome dragon clings to a corner of Munich's city hall.

These bronze pamphlets remember a remarkable group of Germans who fearlessly opposed the Nazis in the very center of their power.

An open-air museum of 18th-century homes and churches transported from various villages in Southern Poland.

An artificial date palm stands as a memorial to Warsaw's Jewish community.

In the summer, the area around this sculpture transforms into a vibrant concert venue.

Boats must transform into railroad cars to navigate this Polish canal.

This 13th century Gothic brick castle is the largest in the world by surface area.

A museum specifically dedicated to the Trabant, one of the iconic automobiles of the GDR.