Banksy's image of a naked man dangling from the window of a sex health clinic.

Replicas of Apollo's leonine stone guard cats still line a sacred row in Greece.

A new sculpture calls attention to climate change in the centuries-old city it threatens.

Go inside to really appreciate this 500-year-old technological masterpiece.

Gargoyle head that brings good luck.

This statue celebrating everyday life in Dublin has a few unsavory nicknames.

An 80-year-old plane tree is devouring an iron bench at Ireland's oldest law school.

A section of the long chain that blocked enemy ships from entering Constantinople.

A fountain standing as a testament to a doomed alliance.

An Art Nouveau gem hides beneath the layers of city grime obscuring this once-magnificent building.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

The bank's whimsical shape was inspired by a child’s toy.

A condom-covered Thai restaurant that is more concerned with birth control than food.

The smallest museum in Basel, Switzerland, is a two-foot-by-two-foot window in the door of a 600-year-old house.

Scattered throughout London are ancient remnants of the city's former bounding wall.

This abandoned coliseum was intended to be a grand Nazi rallying ground before it was halted at the end of the war.

An artistic interpretation of the history of a Scottish park, combining poetry with anthropomorphic animals.

Brass bricks outline the locations of Edinburgh's lost, lively market stalls.

Edinburgh's oldest statue hides within a parking lot behind the city's iconic cathedral.

An iconic red telephone box turned tiny art gallery.

This obscure walkway links Edinburgh’s Old Town with one of the city's prime vantage points.

This historic pub has maintained much of its 1906 decor, including a small sequestered room for women, where orders were slipped through a tiny window.

The most loyal of little dogs, or a Victorian era publicity stunt?

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.