Eighty million natural history specimens call this gargantuan museum home.

Catacombs turned marketplace.

God's Saharan sandbox of wrath.

The painted and decorated towers of this Hindu shrine were once the tallest structures in one of the oldest cities in India.

Picnic on the seashore in the footsteps of ancient kings, protected by giant mythical cat beasts.

This precariously balanced boulder is said to be a hunk of stolen butter dropped by the gods.

Huge herds of Asian elephants can be seen walking, bathing, and just chilling at this Sri Lankan park.

This ghost town in Belgium will lose its street art when it ceases to exist.

A museum glorifying the life of Stalin, located in the city of his birth.

Underground monastery and fortress.

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

The drama of nature in full effect in this Nevada State Park.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

Most-visited and most-photographed slot canyon in the American Southwest.

This historic national park is covered in the stunning ruins of red rock pueblos.

A living time capsule of the 1960s Richardson Bay water-front.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

Medicinal spa created with the discharge from a geothermal energy plant.

This tumultuous Icelandic lava field looks so alien European researchers want to use it as a stand-in for Mars.

This elegant arc of a waterfall marks a religious turning point.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

A monument to the defenders of the Arctic in Murmansk, Russia.