Cliffside houses provide a spectacular view from their perch above the valley.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

This North Carolina store preserves a historic moment in America's movement for racial equality.

The largest Art Nouveau complex in the world is a Barcelona hospital with a 600-year-long history.

A stunning hermit's shrine on a steep rocky spur in Northern Italy.

A stunning garden filled with fantastical environmental folk art and sculptures.

A colorful narrow alley in Cuba is full of street art and sculptures made of found objects.

Known for the tunnel that leads visitors to the water.

This quirky collection is an interactive exhibit crammed with creative contraptions and tinkered-with toys.

A beautiful waterway tucked in the corner of a power plant.

A natural history wunderkammer in the middle of the desert.

This terrifying glass bridge on the side of a mountain cracks as you step on it.

The ceiling of this vintage movie palace is covered in fantastic Art Deco murals.

The traditional houses along the coast of this charming Japanese fishing village allow people to sleep above the sea.

Turn around and stick your head between your legs for the best view of this tree-covered sandbar.

This black shoreline is made up of exploded lava particles.

The northernmost point in Denmark is a turbulent sandbar created by two clashing seas.

The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

The headquarters in Salem doubles as an occult art gallery.

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

If Hello Kitty were Mickey Mouse, this would be Disneyland.

A Japanese concept restaurant that feels like a party thrown by the monsters in your closet.