Countless stories attempt to explain Poland's mysterious J-shaped trees.

Moscow's other, lesser known kremlin is a fairytale-like cultural complex modeled after Old Russia.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

The ruins of a rehabilitation center for World War II vets can be found in the Westminster Ponds Conservation area.

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

The beautiful tunnel that ran from the lobby to Penn Station is still hidden underneath 34th Street.

One of America’s oldest and spookiest hotels, thanks to the residency of ghosts, dead presidents, and Alfred Hitchcock.

An eight-sided home built during a brief octagon craze in the 1850s.

Ruins of the elaborate house where the enigmatic costume designer threw glamorous parties for New York's theatrical elite.

A well-preserved Ancestral Puebloan ruin tucked beneath a desert cliff.

The abandoned bathhouse is all that remains of the hot springs considered Florida's original tourist attraction.

Stenciled handprints and wall paintings dating back 10,000 years, some of the earliest forms of cave art.

The history of radiation is on safe display at the foot of a radiation science laboratory.

This quaint museum tells about more than just the birth of Jesus: "betlémy" are an important piece of Czech history.

This picturesque mansion has gone from opulent ruin to nature museum.

A little known Colombian theme park of giant curiosities.

Bigfoot prints, Feejee mermaids, and haunted dolls on display in a tiny North Carolina town.

A strange house built only at night, with rumored mystic inspiration.

This quirky roadside attraction dives into the many theories surrounding North America's most infamous hairy cryptid.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

A tourist attraction founded around a slumping cabin.

This lake in the Cascades lives up to its name, disappearing down a hole every spring.

Once a giant gingerbread factory, this space now hosts exhibits and workshops on the historic treat.

Hidden in the hills of Hollywood, this secluded Oz-themed garden is dotted with dozens of thrones.