The largest cemetery in the American Southeast is a hidden gem near the heart of Atlanta.

One of Savannah's oldest and most haunted cemeteries, featuring graves desecrated by Sherman's Union Army.

The ruins of a cotton mill that was burned in the Civil War are still hidden in a Georgia forest.

An underground magnet for ever-changing street art.

This massive store is home to an eccentric collection of vintage, retro, and peculiar goods.

Scattered throughout London are ancient remnants of the city's former bounding wall.

Eighty million natural history specimens call this gargantuan museum home.

Catacombs turned marketplace.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

A magnificent place to see authentic paleolithic cave paintings that are an astounding 33,000 years old.

A historic Christian shrine nestled within a spectacular natural cave.

This beautiful spit of land was once the summer playground of the king of Spain.

A small church ornamented with medieval erotic sculptures.

These primitive rock paintings include a very beloved depiction of a woolly mammoth.

An out-of-place grove of sequoias thrives in northern Spain.

This magnificent brick dome was made with an unusual design method.