19th century cemetery hidden in Brooklyn's Prospect Park.

Risk arrest while partying to fund art.

Underground vaults of a former brewery beneath Brooklyn's Crown Heights are now used to ripen cheese.

This preserved wilderness hides the remains of a colonial grain mill used to feed George Washington's troops.

This small, hidden cove is home to abandoned boats.

A working monastery hidden away in Brooklyn once abutted the location of a former inebriate's home.

Empty, but not abandoned, this cavernous Brooklyn loading dock was once considered the largest individual building in the world.

Nearly four centuries after its founding, remnants of one of the oldest planned communities in North America are still visible in southern Brooklyn.

First a horse rendering plant, then a 19th century landfill, this beach is full of glass from thousands upon thousands of broken bottles.

The mummified relic of St. Antoninus.

A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

The middle finger of modernity.

The famous sculptor left his mark on this Italian wall in an internationally protected example of street art.

A stunning cemetery famous for its extraordinarily delicate & lifelike mourning sculptures.

Giant, pink stuffed rabbit on an Italian mountain.

This massive blockhead sculpture hides an entire library.

Thousands of costumed dolls fill one of the world's creepiest museums.

Abandoned medieval hill town.

Museum celebrating the ocean, with the largest wunderkammer dedicated to sea exploration.

The location of the last witch trials of Italy, known as "The Salem of Europe."

A faux desert landscape in the middle of the jungle that sprouts oases during the rainy season.

Jule Körner's house full of bizarre architectural details.

Enormous lake at the bottom of a unique cave system.

Railroad came. People came. Railroad left. Town died.