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

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

A massive work of modern art that appears to be a crop circle in the middle of the desert.

An abandoned outdoor movie theater in the Sinai desert.

An endless sea of white conical domes.

An ancient city exhumed from the depths of the ocean.

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

Standing atop 2nd-century Roman ruins, this church is one of the oldest and most iconic in Old Cairo.

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

Charnel house at the foot of Mount Sinai.

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

The once great capital of Egypt now crumbles forward as evocative ruins.

Even King Tut was intrigued by the glass of the Great Sand Sea.

A huge museum of much more than just agriculture displayed in a princess's palace.

The city-sized home palace of one of ancient Egypt's most powerful rulers gives us a rare look into the lives of the epoch's rulers.

Slum Settlement Filled With Mountains of Garbage.

A hyper-remote desert cave dramatized in "The English Patient."

This North African stone complex is considered to be the oldest astronomical observatory on Earth.

This 7th-century monastery was sacked by Saladin.

This eatery is emblematic of the connection between Jamaica and Nubia.

There are ongoing efforts to preserve this village, the best known work of Egyptian architect Hasan Fathy.

Giant pigeon houses packed into city streets in Egypt.

This lovely little pond is named after the hundreds of soldiers' corpses that were rolled into the waters during the French-Indian War.

The only structure left with direct ties to the Salem witchcraft trials of 1692.