One of Antoni Gaudí’s earliest buildings, built between 1886 and 1890 for the industrialist Eusebi Güell.

The giant birds honor two native North American species.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

"Gnome Chomsky" was once the largest gnome in the world, but is now simply tall for his kind.

An abandoned castle owned and ignored by Masons carries a cursed history.

This Central New York ghost town was once a prosperous railroad community.

This sculpture of a fisherman spent six years at the bottom of the Schuylkill River.

The colonial city's social history is reflected in its fanciful door knockers.

A cozy bookstore and coffee shop in the heart of Cartagena's Old City.

This elegant Colombian fortress was one of the torture headquarters for the Spanish Inquisition.

The caldera of this mini-volcano has been turned into a naturally heated mud bath.

One artist's love letter to his city and its citizens plays out across dozens of bright murals painted on the sides of decrepit buildings.

Yo, Adrian!

The final resting place of a space program monolith.

One of few lasting examples of the brief octagon craze that developed into folly.

Behind this beachfront shop lies a spectacular, colorful sea cave with an equally colorful past.

Oldest building in California still in use.

Visible below the waves are memorials to the city's Gold Rush dead.