One of the few remaining carousels built by master amusement park carver Charles I.D. Looff.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

West Point’s only monument to a woman veteran stands above an empty grave.

The Brigadier General was so afraid of being buried alive that he had a buzzer installed in his mausoleum, just in case he woke up.

Go surfing on this urban wave, "hacked" by local surfers.

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.

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

The fairy tale castle of the "fairy-tale king."

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

A 2000-year-old Roman amphitheater lies just below Guildhall Yard.

Northern Ireland's Brobdingnagian stepping stones.

This 1920s Dutch barge is now a floating bookstore.

A subterranean ice warehouse that has lain hidden beneath central London for over a century is now open to the public.

Hidden beneath the streets of London is a secret subway that only carried mail.

A beautiful but toxic fountain of mercury.

The modern birthplace of Irish freedom.

This magnificent castle grew from a small Moorish fortress, and reportedly inspired two iconic Disney castles.

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

In the fictional world of Kcymaerxthaere, celestial wonders marked a portal to a powerful route of travel at this site in Madrid, Spain.

A whimsical brother of the nearby Fallen Angel statue takes the falling part quite literally.

This former Baroque palace on the historic Calle Montcada is a rare architectural gem and was once the meeting place of an aristocratic scholarly society.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

According to tradition this is the oldest church in Venice, but its actual age is a mystery.