The ruins of a monastery that dates to the 7th century.

The first railway tunnel to cross the Continental Divide and, at 11,523 feet, was once the highest railroad tunnel in the world.

A 12th-century church that houses a dark creature.

An outdoor sculpture park of giant pink robots and post-apocalyptic Christmas scenes.

An extensive collection of some of the oldest grave markers in Lithuania.

A tribute to the Celtic nations that helped settle Australia.

The sinister ruins of one of the worst dam failures of the 20th century lie in this astonishing alpine setting.

The longest and widest floating bridge in the world.

This North Carolina grave is the final resting place of the world's most famous conjoined twins.

Every Christmas, one Arizona city makes the most of its dry climate by creating an arid desert tannenbaum.

America's oldest Italian restaurant is a San Francisco institution.

A diminutive, thousand-year-old church believed to be the smallest in Ireland.

These mysterious ruins are hidden amid this sleepy coastal city.

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

Rabbit Hash is a heaping slice of Americana from another era, with a very peculiar origin behind its unusual name.

All that remains of the fishing-vessel-turned-warship is its weathered hull.

Thousands of lawn gnomes have infested this Australian roundabout.

The burial grounds of a secret society includes fences topped with fake Tesla balls.

A young state senator's deathbed plea to be buried inside a rock resulted in this unusual grave site.

The legacy of an unsolved, gruesome murder rests beneath the spans of this historic bridge.

Prison made famous by The Shawshank Redemption has been out of commission since 1990.

Earth's greatest purely vertical drop at 4,101 feet.

Instead of solid circles, the stoplights in this northern Icelandic town have glowing red hearts.

A rare labyrinth-style path carved into a historic hill.