This whimsical home made entirely from clay is basically a giant piece of pottery.

Thousands of exquisitely carved stone water storage wells, hundreds of stone steps fill this exquisite medieval stepwell.

This Ecuadorian cemetery is home to a jaw-dropping topiary wonderland.

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

Underground monastery and fortress.

This "dead marsh" sits among the largest sand dunes in the world, a forest frozen in time.

The remains of diamond fever taken over by the desert.

After millennia of erosion by sand and churning water this Brazilian valley now looks like a lunar fantasy.

Raging waters have created a strange geological site that looks like something off of a progressive rock album cover.

A 70-foot-deep ice cave formed by lava from Mt. Fuji on the edge of Japan's "Suicide Forest." 

A part of the world's largest marsh seems to be growing bright red Martian grass.

This Oregon farm is dedicated to teaching people the professional art of tree climbing.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

This abandoned five-star hotel is now a five-star urban exploration destination.

Besieged by war, this castle ruin has crumbled into a peaceful picnic spot.

The world's largest maze is a nature park with nearly 200 decision points.

The longest hedge maze in the world.

Sandstone rock formations that look like they belong on the cover of a progressive rock album.

Trails through lava-carved tube-caves display sparkling bacteria and a rich history.

Each winter this underground cave forms a dazzling ice palace.

A boat ride through utter darkness, lit only by headlamps, reveals an emerald green pool locals believe is sacred.

Gorgeous cave resemble a winter wonderland.

A stunning silver lining to global warming's gloomy cloud.

Breathtakingly blue walls shimmer inside the "Glacier Behind the Town."