This tiny island is home to the world's largest colony of Northern gannets.

England's largest white horse isn't even white.

One man spent 10 years building a spectacular section of road because no one else would.

The oldest cemetery of modern-day Athens blends the modern and ancient worlds.

Known as the leaning temple, the sacred structure has somehow developed a severe nine-degree slant.

The only quarter of the Old City not dedicated to a major world religion.

Take a hidden path to the mouth of the cave to watch millions of bats swarm at sunset.

Rare wooden escalators lead deep down into an otherwise staggeringly monotonous tiled tunnel.

Originally built for London’s cab drivers, this bright green hut now serves anyone a hot drink or meal.

A whimsical cottage from the 1300s with a preserved Victorian-era post office inside.

Long tunnels run under the ancient chariot racing circuit to the tower.

An unassuming nature trail winds through dozens of tiny houses built for the wee people.

Cairns built to bring travelers good luck stretch across the land like miniature stone mountains.

A simple plaque on the facade is the only reminder that the treaty ending the American Revolution was signed inside.

This architectural oddity is an oasis of green on the outskirts of Valencia.

Castro's communist ice cream mothership has been serving five-scoop "salads" for over 50 years.

One of the most elaborate displays of Jellyfish is on display at the aquarium.

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

A hidden three-foot-wide house separates these two regal churches.

Inside this Icelandic greenhouse, geothermal energy keeps tomatoes warm and growing.

A shrine to the missionary who first brought Islam to China.

A 600-year-old mini shrine guarded by a sword-wielding knight hides in a crumbling cliff face.

One of the U.K's earliest public water supplies is within the "plague village."

Three memorials honor the victims of the worst sports stadium disaster in Britain.