Perched on a spindly rock spire in a Greek archipelago, this lighthouse would make a perfect wizard's tower.

A cabin completely covered in coffee mugs, where visitors are welcome to leave one of their own—if they can find an empty nail.

Like something out of a bad acid trip, this Ukraine hallway has been covered in hallucinatory phantasmagoria.

Unusual house, in an unusual neighborhood, home to some very unusual peanuts.

This cave holds a surprisingly colorful variety of geological oddities.

A bizarre house filled with an astounding array of collections.

More than 5,000 contemporary and "historic" mustards from around the world.

Its founder calls it a "proletariat art renaissance".

Explore 10 acres of environmental sculptures.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

Natural catch-basin rocks covered in thousands of drawings spanning many millennia.

A famous flea market artist's studio that's full of odds and ends.

One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.

These Pre-Columbian petroglyphs contain representations of birds, deer, hunters, and even some early Native flute players.

A preserve with 75,000 ancient drawings remains the realm of public – not just scientific – exploration.

A burnt orange monolithic dome structure perched on a hillside near Interstate 280.

The highest dunes in California are the most likely place in the area to hear the Singing Sands.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

A glimpse into the lives of the the Miwok and Paiute people in Yosemite National Park.

This naturally heated mountainous creek has created a group of neon blue pools of potentially deadly boiling water.

An old-timey medicine shop that once served Chinese laborers during the Gold Rush is still open for business to this day.

Seller of surplus nuclear research materials.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

Despite time, colonization, and the brutal New Mexican heat, these Pueblo ruins still stand.