This 317-ton walkable art installation is an homage to Korea's "City of Steel."

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

This heavily worn bas-relief was once an honored fertility symbol.

This ultra-modern wooden boardwalk turns the ocean into a swimming pool.

Vortex-shaped aquarium hosts Europe's largest school of piranhas and other ocean creatures.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

A preserved oasis with traditional Andalusian-style architecture and beautiful views of the Nile.

This legendary giant, born from vegetables, terrorized townspeople and cheated local children in games.

Hidden along this old street in Antwerp is a surreal monument of a bronze arm sprouting four hands.

This statue dedicated to the story of a Flemish boy and his dog was relatively obscure in Belgium, but a cult sensation in Japan.

The legendary giant's severed hand sits on Antwerp's popular shopping street.

The patron of this extravagant Art Nouveau confection insisted that nothing less than a boat should project from its facade.

Fake subway tiles were installed to cover a design that resembled the Confederate flag—it's unclear if the resemblance was intentional.

Take a walk in a recreation of ancient Rome.

A hidden three-foot-wide house separates these two regal churches.

Building owners can take out tiles for free at this repository for historic building materials.

This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

Elaborate tile work in this railway station tells the story of Portugal.

The birthplace of the titular coat and related products celebrates its claim to fame with a statue of a coat.

These giant yellow bowling pins seem to be defying gravity.

Numerous impressive carvings are embedded in the trees lining this street in Marrakech.

The largest madrasa in Morocco once housed more than 900 students within its exquisite walls.

The oldest monument in Marrakesh and the city's only surviving example of Almoravid architecture.

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.