Pop culture has helped to keep this iconic British building from being destroyed.

The remains of the great moral philosopher reside in a university in London.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

An Iron Age fort on the edge of a seaside cliff offers a glimpse into an ancient, mystical world.

While only two of the ancient buildings at this site are actually churches this was one of the earliest Irish pilgrimage sites ever.

A diminutive, thousand-year-old church believed to be the smallest in Ireland.

Traveling this mountain pass reveals quaint stone buildings, stunning Irish scenery, and a bridge said to grant wishes.

The dairy farm in upstate New York where nearly half a million people gathered for three days of peace and music in 1969.

This ominously named New Jersey street seems to be attracting over-the-top legends of its own making.

Toxic waste disaster that founded the Superfund program.

A 19th century hat factory still stands as a crumbling ruin in upstate New York.

A ruined mansion hidden in the woods of the Hudson Valley, home of a tragically doomed romance.

A massive art collective tries a new take on Brooklyn's DIY music scene—by making it fully legal.

A modern zoetrope on the New York City subway.

A decommissioned military complex that's now a modern industrial park.

“Invented in Key West, Perfected in Brooklyn."

A Victorian cemetery in the heart of Brooklyn remains a popular mecca of morbid curiosity.

A curious friendship between two inanimate ladies.

A heartbreaking monument showing the last morning in the life of Jane Griffith.

This enormous banquet-themed artwork honors over 1,000 notable women throughout history.

An illegally built ramshackle mansion tucked in the middle of Brooklyn is now being turned into condominiums.

A blend of art, antiquities, and Americana fill this museum, surrounded by whimsical, enchanting gardens.

A miniature world of concrete and stone in Springfield, Ohio.