Dating back to the 1800s, two imposing buildings in Michigan have had countless transformations over the years.

An early 20th-century sanatorium, long abandoned and now being reclaimed by nature.

An abandoned Jewish sanatorium is tucked within the woods of Poland.

The haunting, dilapidated remains of a former poorhouse on Staten Island's Greenbelt.

A veritable variety of odds and ends.

A look into the Church of Scientology's deeply unfavorable view of psychiatry.

The loneliest island in New York.

This mysterious and creepy location instills a strong sense of foreboding in all visitors.

The crumbling remains of the first Black-owned and operated hospital in Kansas City.

A remarkably opulent mansion with a tragic history.

This dreamlike museum is filled with the works of an influential surrealist artist whose name you may have never heard.

This spooky road cut through a mound of ancient coral might be haunted by a witch.

This dark, quiet forest on the outskirts of San Diego is dense with rumor and lore.

The eccentric mansion of one the most popular horror authors of modern times.

The quaint little Vermont town played a quaint little Connecticut town in Tim Burton's "Beetlejuice."

This Boy Scout retreat acted as "Friday the 13th"'s original Camp Crystal Lake.

This historic old movie house was the scene of one of the Blob's most iconic attacks.

The filming location of a shark attack in Steven Spielberg's famous shark movie.

This French anatomy museum greets guests with a skinless man, mid-shovel.

A museum devoted to bringing to light forgotten or neglected histories through exhibitions, education and public programming.

This huge pile of volcanic boulders hides a stunning network of secret grottoes.

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

A 90-year-old underground water reservoir offers a more industrial kind of tranquility.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.