This natural Icelandic fissure allows divers to swim right between two volatile tectonic plates.

These ominous lava formations were said to be an entrance to the netherworld so of course they inspired a famous metal band.

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 elegant arc of a waterfall marks a religious turning point.

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

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

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

Eighty million natural history specimens call this gargantuan museum home.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Known as the "Valley of the Moon," this Jordanian wadi is one of the most amazing desertscapes on Earth.

The world's oldest map of the holy land gives us a fragmented glimpse of the layout of biblical nations.

Concentrated around the Dead Sea, these surprising canyons are filled with coursing water, fish, and even crabs.

A more chill but no less fascinating version of the famous ancient archeological site.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

This unassuming tree stump reportedly traces its roots to the famous pharaoh queen's reign.

The deadliest diving spot in the world is also a stunning geological marvel.

Known as the Sistine Chapel of Egypt, this tomb houses some of the most well-preserved paintings in Egypt.

These Egyptian statues have survived for 3,400 years and were an acoustic wonder of the ancient world.

Ozymandias’ time-keeping temple.

This dazzling Buddhist temple was constructed from over one million ceramic tiles salvaged from a British shipwreck.

A white Buddhist temple with a golden restroom.

This tiered waterfall is so pretty it may cause visitors to cry tears of their own.

One of Vietnam's most iconic landmarks was built by Japanese traders and is now in danger of sinking.