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

Decommissioned experimental solar facilities that pioneered solar energy technology.

The palatial McDonald's that inspired Wesley Willis.

A lush green oasis in the middle of Chicago.

The ruins of the largest gladiatorial school in Rome are largely hidden under modern streets.

A giant Troll lurks under one of Seattle's oldest bridges.

Instead of faces, these sculptures have barcodes—statements on societal dehumanization.

Beneath the southern end of the Golden Gate Bridge is the “Gibraltar of the West Coast,” a fort built to protect the San Francisco Bay from naval attack.

Monumental sculptures of Patrick Amiot, constructed from debris, detritus, and determination.

Built for an exposition in 1915, these horticultural displays have stood the test of time.

Traversing these canyons, visitors can take in stunning views and glimpses of the region's history.

Explore the wide world of desert plants at this unique Palm Springs botanical garden.

This whimsical seashell-shaped place of worship was designed to blend into its surroundings.

Hike amid the palm trees that thrive among Southern California's Indio Hills.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

A music-filled, booze-soaked oasis in the desert.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

A fake town founded by Western movie stars is now becoming a hip desert community.

Dozens of feral felines rule a segment of Hollywood's only graveyard.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

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

Explore 10 acres of environmental sculptures.

The ghostly remains of an accidental sea.

A hand-built folk art installation covered with messages of God's love.