A Stockholm metro station is home to an escalator that is not only the longest in Sweden, but among the longest in the world.

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

This lesser-known Frank Gehry building houses a treasure trove of cinema history.

The video game-themed street art first popped up in the French city.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

The house that took a plunge into the facade of a museum.

Austria's ultra-modern art museum looks like Cthulhu's giant alien heart.

Resting in the middle of an Austrian river, this sci-fi "island" lets people cross in neon style.

This series of Baroque passageways in Vienna's cultural center mix old architecture with modern art.

Vienna's diversity-themed traffic lights were inspired by the Eurovision Song Contest.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

This eclectic sanctuary is a hodgepodge of various architectural styles, all crammed into one building.

Once the longest swing bridge in Europe.

In addition to showing films, this one-screen arthouse cinema from the late 1940s is a museum of old film equipment.

One Portuguese poet described this cape, the westernmost point in mainland Europe, as "where the land ends and the sea begins."

The verdant mossy ruins of a Franciscan monastery lie in the remote Sintra hills awaiting exploration.

These blingy, baubled skeletons lie in glass boxes inside a baroque Bavarian church.

The vaulted ceiling is home to a scurry of “squirrelgoyles.”

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

A remarkable feat of Victorian engineering across the Firth of Forth.

An important landmark in the history of algebraic logic.

A giant snail sculpture looking longingly at the German traffic museum.