One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

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

Commonly referred to as the most photographed Victorian home in the United States.

Every New Year's Day, locals don gaudy costumes and dive into the frigid Firth of Forth.

An abandoned, desolate train tunnel that was used during World War II.

A shrine to a skeleton saint in the city of angels.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

An extraordinarily ornate museum in San Diego holds wondrous anthropological treasures.

The 20th-century chapel’s intricate woodwork includes amazing details, most notably angels playing bagpipes.

The unbelievably opulent home built for an infamous newspaperman.

The colorful stairs are made with marble from the world's major quarries.

This vintage gem is one of the oldest surviving purpose-built movie palaces in Scotland.

A carved bench marks the Scottish cave that inspired the classic adventure novel "Treasure Island."

A poignant memorial shows the widows and children left heartbroken by the worst fishing disaster in Scottish history.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

This massive redwood tree has a hole in the base big enough to drive through.

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

A grave marker depicting a body snatching tableau on a 19th-century tombstone.

The United Kingdom's smallest working cathedral also serves as a quaint bed and breakfast.

A bizarre stone beast lurks on the beach of a popular tourist island.

Climb this overlooked gem's spiral staircase and you'll be rewarded with spectacular views of Glasgow.

A leafy, peaceful oasis nestled in the heart of Glasgow's busy south side.

The artwork is tucked within a cave on a tiny Scottish island only accessible at low tide.

These semi-natural waterfalls hint at the park's Victorian-era industrial past.