Ralph Waldo Emerson spent two years living here decades before it became a Frederick Law Olmsted-designed park.

Site of a famous 19th-century transcendentalist utopian community, now abandoned.

This crescent-shaped sliver of sand is a magical haven for a herd of feral horses.

Increasingly decayed figures stand as a powerful reminder of the human costs of Czech Communism.

This bar and museum are devoted to the controversial comic book work of Kája Saudek.

An eerie, existential museum dedicated to the author of "The Metamorphosis."

An existential riddle in the world's largest ancient castle.

Street artists transformed an abandoned air vent into the beloved Star Wars robot.

Beautiful steampunk ghosts of early Massachusetts.

19th-century operating theatre in which the use of ether was first demonstrated - plus, a skeleton and a mummy!

This isolated structure beckons adventurers with sublime views of the Faroe Islands.

A merchant court dedicated to the fictitious King Arthur is heavily adorned with bizarre Renaissance art.

Mysteriously stacked storefront paths give this medieval British town an iconic style like none other.

A mysterious emblem tucked in an small alleyway is actually the coat of arms of a heroic medieval family.

A huge wooden clock that is so beautiful its creator was forcibly blinded.

Modern art commemorates one of the first military actions of World War II.

The site of the first battle of World War II.

Warsaw's fantastically preserved gasworks...almost.

A program of Communist glamour in post-Stalin Poland is preserved in this colorful museum.

A fairytale Gothic castle steeped in Nazi treasure conspiracy theories.

The walls and ceiling of this Polish church are decorated with thousands of skulls, with another 21,000 skeletons just below.

The oldest working bell set in North America, the bells at Old North Church sat silent for their first four years in Massachusetts.

This popular Boston haunt is reminiscent of a time gone by, when slow cafes and sweet-smelling smoke wafting from patios was the norm.

The former locus of Boston's high culture has been shuttered and buried for over 70 years.