One of Scandinavia's largest mosaics pays tribute to Danish art and science luminaries.

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

A 90-ton, gravity-defiant steam locomotive shoots for the skies in this bizarrely beautiful public artwork.

A striking public sculpture representing the period of martial law in Communist Poland.

Built to transport German U-boats through the never-completed Masurian Canal, the locks near this Polish village are now home to a rope course.

A miniatures park with a model of Wolf's Lair as it looked during World War II.

This lakeside bunker complex in Mamerki, Poland, housed the Supreme Military Command of Nazi Germany during World War II.

Enormous ants wielding giant pine needles guard a Stockholm real estate company's office.

This chimerical bridge/tunnel appears to dead end right into the sea.

A fairytale Gothic castle steeped in Nazi treasure conspiracy theories.

On this Polish road, an optical illusion makes cars seem to roll uphill.