The secular incarnation of a religious meditation.

Monasteries on rock pillars, once accessible only by frayed ropes.

A market built atop boats is one of the few floating holiday markets in Europe.

Graffiti covers the walls of a room where university students through the centuries have waited nervously to defend their theses.

Meet the bronze beloved pet to a family of famous peeing statues.

This giant middle finger statue sends an unambiguous message to Italy's bankers.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

A public urinal so pretty, it was declared a national monument.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

It appears as if a man is standing behind this giant airport clock, painting the hands in real time.

A 'living museum' in Leiden, the oldest of its kind in the Netherlands.

Devious political maneuvering and four ancient, working telescopes are central to the world's second-oldest observatory.

Science meets wall art to highlight the beauty of famous mathematical equations.

The works of poetry's biggest names grace the walls of the city of Leiden, all carefully painted by hand.

A preserved building where the dead were once watched for signs of life.

A tribute to the Polish insurgents who fought in the failed attempt to end their city's Nazi occupation.

A statue honors the children who fought Nazis in Poland.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

Thousands of slain Soviet soldiers are buried within the shadow of this enormous obelisk.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

This fairytale-like structure is the last turf church ever constructed in Iceland.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Twisted girders are all that remain of an Icelandic bridge that was wiped out by a combination of volcanic heat and glacial floods.

Strange rock formations tower above the river that snakes through this enchanting Icelandic canyon.