An unfinished tomb carved into a giant boulder in the Arabian Desert.

Ozymandias’ time-keeping temple.

An ancient instrument used to measure the waters of the Nile so Egyptian farmers would know whether to expect famine or flood.

Home of controversial poet priest who penned the words for the Austrian national anthem used in the 1930s.

One of the largest single-span stone-arch bridges in the Balkans looks like something straight out of a fairytale.

An extraordinary natural landscape of mountains, waterfalls, and rocky cliffs riddled with tunnels.

This former factory turned private museum contains surreal and creepy artwork created by Robert Y.

The world’s largest work of glass art hides in this stunning Taiwanese subway station.

This collection of lakeside pagodas and temples are flanked by giant lions, tigers, and dragons as well as their welcoming maws.

Visit this church that's shaped like a giant glass pump either to cater to women or to reference a tragic local tale. Or both.

A thriving artist's wonderland located just 6 kilometers from Korea's DMZ.

Home to more than 13,000 pieces of war memorabilia and military equipment.

Step into a cartoon at this Seoul café that aims to evoke a two-dimensional scene.

All that remains of a Japanese fishing vessel that ran aground in 1982.

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

Drink and dine in a coral cave that's at least 120,000 years old.

Life and death are on parade at the most reliably perilous site of “the Great Migration.”

Abandoned ships along a deserted beach feel like the set of a post-apocalyptic thriller.

A hiking/biking/exploring trail that winds across over 140 miles of Rwandan shoreline.

Mount Nyiragongo has erupted at least 34 times since 1882 and is home to the world's largest lava lake.

This nearly abandoned plantation was once witness to an eclipse that proved Einstein's theory of relativity.

The last remaining site of Yoruba worship of the fertility goddess.

Climb around the high waterfalls on series of iron ladders and bridges within the wildest gorge in the Slovak Paradise.

The world's most active stratovolcano is almost always erupting.