This neon blue river gets its color from a unique mix of bacteria and volcano minerals.

This 7th-century monastery was sacked by Saladin.

Part shoe store, part sociopolitical art gallery, part zoo.

Hundreds of thousands of ancient documents offer a unique glimpse into Jewish life in Cairo.

Some believe that this ancient mural depicts technology far ahead of its time, but in reality it's nothing quite out of place.

Egyptian treasure trove of fossils documenting the whale's transition from land mammal to sea creature.

In Egypt's expanding metro area, many of the neighbors are dead.

The massive cave church of Cairo's Zabbaleen community is one of the largest Christian churches in the Middle East.

An alien landscape of chalk-rock in the Egyptian desert.

An endless sea of white conical domes.

A Hawaiian stairway to heaven—that you can't climb.

A model of a galactic embassy is hidden in plain sight along the highway, proposed by a UFO religion to find the aliens that created life on Earth.

An authentic replica of an Asian temple and garden hidden amongst the natural beauty of Hawai'i.

A true treehouse near Hawai'i Volcanoes National Park.

Race through the maze, get your name on the sign.

Hide from the tourist hordes in these relatively unknown, and unguarded lava caves.

A tunnel of hardened lava along Maui’s famous Road to Hana.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

Underwater restaurant at the coral reefs of Eilat.

The world's only official college program focused on "clown therapy."

This archaeological site was the center of the extinct Yarmukian culture which developed the first roads and pottery in Israel.

A modern-day cabinet of curiosities housed in a 300-year-old inn.

Hidden out of public view in the National Library of Israel is a collection of "Stalag's," 1960s Nazi themed porno paperbacks written and consumed by Israelis.

A magical oasis in the middle of the Negev Desert.