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

The largest Art Nouveau complex in the world is a Barcelona hospital with a 600-year-long history.

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

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

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

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

According to legend, this rock represents a young girl trapped by an evil ocean spirit.

The park preserves a single, rare species of carnivorous plant that spells doom for unsuspecting insects.

Only known mainland rookery of the threatened Stellar sea lion.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

The highest point in Washington state is a volcano covered in glaciers.

An abandoned network of military bunkers and tunnels open for anyone willing to descend into the darkness.

A walk through the historic city center, under the streets of Seattle.

Canyon walls shrouded in ferns.

Built by the inventor of the radio, this abandoned hotel has housed early radio employees, military men, and a dangerous cult.

An enchanting tunnel of cypress trees leads to an old morse code station still used today.

The lighthouse central to the 1980s horror classic "The Fog" is, in fact, located in one of the foggiest areas of the Pacific Coast.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

San Francisco's newly reopened hands-on science museum.

One of the largest Native American shell middens stands 30 feet tall.

Mariners once used this prehistoric landfill as a navigational landmark.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

This abandoned NASA launch site is now a memorial to a trio of astronauts who were killed there.

Former villa and estate of James Deering developed to preserve native tropical forests.