An accidental trick of light casts the perfect shadow of a pilgrim of the Camino de Santiago against the cathedral wall.

This stop on the Camino de Santiago stands high above the underwater ruins of a medieval town.

This ancient trail has claimed the lives of over 2,000 people.

The ghostly remains of an accidental sea.

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

The shop's owner has spent decades in the desert wearing nothing but a strategically placed sock.

This isolated outpost was once the only place to cross the Colorado River for hundreds of miles.

See massive fossils that are over 200 million years old in northeastern Arizona.

This once-booming Gold Rush town is now home to a herd of feral donkeys.

This strange seaside tower got its name from a wealthy eccentric who would hide coins among its stones.

The private clubhouse for the members of the Academy of Magical Arts.

This weird abode has inspired everything from the "House on Haunted Hill" to a robot hunter's pad.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

This dormant volcanic crater has been converted from a roiling pit of magma to a pleasant hiking spot.

The ghost town that ended up on Ebay.

This mesmerizing and surreal landscape features intricate patterns of white and red sandstone.

Seemingly grown on some other world, these New Mexico rock formations look like a disused science fiction set.

The only mine for rare earth elements in the United States has been intermittently active since the 1950s.

No one’s quite sure why there's a metal megaphone bolted on two rocks in the middle of the Mojave Desert.

This large pile of traveler-curated rocks by the dry lakebed is a longstanding tradition on the Old Mojave Road.

In one of the hottest parts of the Mojave Desert, shallow bedrock forces the typically dry Mojave River to the surface in this canyon, providing a vital oasis for humans and wildlife.

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

Along a California highway is a kind of Jurassic Park made of metal.