This fortress sits atop a centuries-old well system.

This giant volcanic crater holds its very own field of salt.

The remains of three different ancient civilizations have been found at this rich archaeological site.

The forgotten mummies of Dakhla oasis.

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

Source for a sizable portion of Egypt's freshwater supply is more than an optical illusion.

Charnel house at the foot of Mount Sinai.

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

Located near Cairo's El Korba district, the abandoned mansion continues to inspire mystery and rumor throughout the city.

Slum Settlement Filled With Mountains of Garbage.

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

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

Ancient Egyptian relief, claimed to depict an electrical light.

One of the most well-preserved temples of ancient Egypt.

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

An endless sea of white conical domes.

The legendary court where emerging basketball players gain their street cred.

Hordes of precariously balanced stone figures crowd the shores of the Hudson River.

This Bronx apartment building is officially recognized as the birthplace of hip-hop.

The oldest surviving bridge in New York City, which reopened to pedestrians in 2015.

One of the only single-person private gravesites in New York City.

Visit the monolithic tomb of America's most famous general.

A Gothic-style abode built to accommodate the church's three resident peacocks.

A New York garbage depot holds a secret collection of weird and wonderful refuse.