South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.

A terrific purveyor of natural history objects and curios.

The site of the deadly Triangle Shirtwaist Factory Fire.

A hands-on traveling collection of the innovative devices of yesteryear.

Hidden in one of New York's oldest subway stations is the final remnant of the site of the bizarre Shakespeare Riots.

New York City's only preserved family home from the 19th century.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

This kitschy tavern is also home to rare early editions of "Treasure Island."

The "last unrestored grand mansion of Savannah" is now a cramped, mouldering maze of antiques.

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

This quirky curiosity shop takes its cues from the world's bazaars.

Macabre astrological automaton clock dating to the late 1400s.

A winding medieval path was used by mourners to carry their dead to the nearest church.

England's largest white horse isn't even white.

This magnificently macabre shield shows the power of chivalrous love in medieval times.

These mysterious Viking chess pieces spent centuries hidden on a remote Scottish island.

The Art Deco artwork depicts gilded carriers of deadly illnesses.

A naturally mummified 2,000-year-old man.

Victorian-era Londoners really wanted to believe this 17th-century cistern was actually an ancient artifact.

Tombstones and enigmatic inscriptions hide within a vault beneath a popular London arts venue.

The world's oldest family-run magic shop is hidden beneath a bustling London thoroughfare.

The fierce beast perches atop a pedestal marking where the historic City of London gates once stood.

Never actually a tree at all, this spot was the site of London's public hangings for nearly 600 years.

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