It's clear this abandoned Art Deco gem was no ordinary cleaners.

A pink cottage covered in hearts served as a haven and a resting place for LGBTQ activists.

A treasure trove of rare and exquisitely detailed antiques

This Art Deco airport was once deemed “the air hub of the Americas.”

Wedged between two sets of row houses is an awkwardly located family graveyard.

This castle was established by the 4th Duke of Montrose and is connected to the Buchanan Clan.

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

One of the largest collections of traditional Māori artifacts in New Zealand.

A bronze kitty adorns the grave of the polar explorer who brought the original feline to the Antarctic.

The most southerly spot on New Zealand's South Island is home to surreally shaped, permanently mangled trees.

A Maori village obliterated by an 1886 volcanic eruption.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

Sacks of potatoes, made of cast stone, mark where the iconic potato sheds once stood along the river.

This beautiful architectural gem was the first waste treatment facility in Boston.

The infamous Boston Mob ran rackets from an office here in the 1970s.

One of the few remaining monuments dedicated to South Boston's Irish heritage.

This small glass cube is a peaceful out-of-the-way sanctuary at the busy airport.

One of the indelible moments of the American Revolution took place at this location.

This giant Boston statue of Mary is standing on a globe to show her power over the universe.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

Built by prisoners of war, the largest small-scale model ever built includes eight miles of tiny streams that now sit abandoned.

A four-hour holy-rolling, Hallelujah-shouting, Southern gospel service, rendered as a country market where "All Is Welcome, Jews, and Gentiles."

Nondescript elevator doors open to reveal a stunning, surreal world.

New York City's smallest piece of private property.