These enigmatic ruins continue to vex archaeologists.

Send a postcard while vacationing with Satan.

More than 25 fully functional scale replicas of famous lighthouses dot the shores of Lake Havasu.

This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

This huge dam across the Colorado River caused an armed standoff between two U.S. states.

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

An outdoor sculpture park of giant pink robots and post-apocalyptic Christmas scenes.

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

Abandoned bridge hidden deep in the San Gabriel Mountains.

View the California coastline (and the home of Barbara Streisand) inch by inch with stunning, government-sanctioned aerial photography.

Where religious effigies, magic soaps, and occult candles are brought to customers at wholesale prices.

The hidden jewel of Disneyland: a members only playground for the Disney elite.

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

The site of murders and Satanic cult gatherings.

Oldest building in California still in use.

San Diego's most historic and haunted home.

This historic graveyard was partially paved over to create a streetcar line.

At this local mall, visitors are ushered through a 1940s jail exhibit.

The oldest standing structure in downtown San Diego.

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

The ghostly remains of an accidental sea.

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

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

A UFO scrapyard in the California desert.