One of the longest wooden benches in the world snakes around Geneva's Treille Promenade.

This short bridge is the only thing connecting a tiny Irish island to the mainland.

The ruins of this medieval castle in Northern Ireland have inspired artists from C.S. Lewis to Led Zeppelin.

Northern Ireland's Brobdingnagian stepping stones.

This massive monument has been telling the time for 150 years—at a slight angle.

The last Victorian market in Belfast.

A museum marks and documents the site of the Titanic's launch.

A fearsome dragon clings to a corner of Munich's city hall.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

This massive statue is the personification of Bavaria and the first colossal statue of the modern period composed of bronze.

This irregularly shaped sea fortress has defended not one but three different sovereign states.

A subterranean house of worship carved right out of the bedrock.

Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

A mysterious air force base built to resemble a Long Island fishing village.

This 19th-century Hamptons windmill was once home to modernist painter Agnes Pelton.

The only road through the heart of Glacier National Park.

This otherwise unremarkable ski town building marks the site of Butch Cassidy's first robbery.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

One of the largest collections of wildlife art in the United States, built into the side of a cliff in rural Wyoming.

This rustic old building is said to be the most photographed barn in America.

This plot of old-growth forest is the largest surviving remnant of New York City's original woodland.

Tucked away amidst some of the most famous addresses in the world is New York's only fraction of a street.