This curious fresh and salt water lake holds a secret that draws in deep divers from around the world.

Volcanic activity causes small pools of super-heated mud to boil furiously.

Located in the mountains of Nicaragua, one man has spent most of life beautifying a massive cliff by hand.

After the devastating 2011 earthquake, historic Christchurch begins to recover, starting with the pop-up Re:START mall.

Mounds of fine golden sand that can rise nearly 500 feet tall.

This remote highway took over 50 years to build.

It took millions of years for these rocks to resemble their mammalian counterparts.

This incredible narrow-gauge mountain railway was created by a ceramic artist.

Modern art meets modern convenience in possibly the world's most architecturally important public bathroom.

Major tourist destination known for its bubbling mud-pools and hot thermal springs.

A huge stone pyramid built for fun.

Australia's only active volcanoes and highest peak are located on these remote islands thousands of miles away from the mainland.

Enjoy all the trappings from 1912 aboard this Titanic-themed restaurant.

Australia's first open air museum and antique 3D theater.

Curious crater remnants in the middle of the Australian outback.

Giant fruit signaling the entrance to a tropical paradise.

A perfectly preserved abandoned criminal asylum in South Australia.

These tracks are believed to be from a panicked dinosaur stampede.

Not a single witness can attest to the creation of the world's largest geoglyph.

The statue honors an adventurous seafaring cat.

A series of sculptures beneath the waves promote ocean conservation and support coral reefs.

One of the only places where Earth’s mantle lies above water.

Largest maize maze in the Southern hemisphere built with GPS technology on more than two acres.

People can't get enough of these adorable Japanese photobooths.