Handcrafted thermal spa washes away each night with the tide.

Known for the tunnel that leads visitors to the water.

Running since 1864, this clock has yet to be wound, one of the longest-running science experiments known.

Some of the clearest water anywhere in the world.

A perfect turquoise lake colored with glacier dust.

A glacier pocked with ice caves and surrounded by rainforests.

The real life Hobbiton, this sheep farm has been forever transformed since being built for The Hobbit film series.

Deadly scalding and one of the largest hot springs in the world.

Tubing through a cave lit with glowworms is a magical underground experience.

The Dalai Lama named this New Zealand landscape the "Spiritual Center of the Universe."

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

This strange geological landscape erupts with sudden bursts of water.

This museum/fur store is devoted to educating guests on how awful opossums can be.

The world's only complete colossal squid specimen is on display at the Te Papa Museum.

The world's largest collection of intentionally useless inventions.

This former insane asylum now holds a pathological anatomy museum.

"Medieval" castle built in the mid-20th century by one family.

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

The legendary cliffside castle of three-time Voivode of Wallachia, Vlad the Impaler.

A gleaming white and undulating tower marks the border between Georgia and Turkey.

Unusual building appears to be haphazardly built from randomly piled bricks.

A tree-like building perches on its trunk in the Steglitz neighborhood of Berlin.

Located right outside of Vienna, visitors can take in expansive views of an ethereal forest.

Looming communist pillar with a Czech twist.