An ancient stone fortress considered by many to be the eighth wonder of the world.

This sacred fig tree with a link to the Buddha is one of the oldest human-planted trees in the world.

These abandoned ruins in the middle of Jaffna have withstood centuries of tumultuous power struggles.

An abandoned stretch of elevated road in the middle of the Brazilian jungle.

This 14th century castle withstood years of battle but is now sliding off the hills into the Danube.

Largest island in the Baltic Sea experiences such idyllic weather that roses bloom in the middle of December.

The ruins of an abandoned 18th-century town that is slowly being reclaimed by the forest.

California's oldest existing theater building hosted an impressive cast of celebrities, including hosting Mark Twain's first lecture.

A Looff creation in Santa Monica best described as “a California-Byzantine-Moorish-style fantasy.”

Hopeless romantics will swoon over the sweet story behind this bright and colorful home.

This little gem of Spanish Colonial architecture has been abandoned since the 1950s.

Malibu's first beach home features an astonishing trove of ceramic tiles.

Crumbling pink walls and murder memorials preserve the pioneer history of Joshua Tree.

An art supply shop holds the secrets of this quiet neighborhood's raucous Barbary Coast past.

The overgrown ruins of a once thriving World War I-era copper mine.

Only hotel where you can legally launder money.

One of the first skyscrapers in Santa Monica, and a famous getaway for the Hollywood elite of then and now.

Santa Monica's oldest restaurant, decorated with set pieces from the Mutiny on the Bounty.

The oldest lighthouse on America's west coast no longer needs keepers, yet they maintain the site anyhow.

The cluster of boulders near Fort Irwin is covered in military insignia.

An Old West film set seen in countless TV shows and movies is open for the public to explore.

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

A pair of pure white felines guard the entrance to a spot of California real estate established as an artist's haven.

This mountaintop beacon is only lit three times a year but shines like some kind of all-seeing eye.