The medieval center of the Islamic world was also once the seat of Saladin's sultanate.

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

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

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

The largest known Ancient Egyptian obelisk.

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

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

This ancient structure is widely thought to be the oldest intact pyramid in the world.

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

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

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

Ozymandias’ time-keeping temple.

An ancient instrument used to measure the waters of the Nile so Egyptian farmers would know whether to expect famine or flood.

This historic hotel preserves many treasures from its heyday hosting passengers on the Orient Express.

This column celebrates Rome's victory over the Goths, and may be the oldest Roman monument in Istanbul.

A charming beach town in Turkey captures all the colors of the rainbow.

The most metal church of all time was built in record time because of an international, pious pissing contest.

Legend says if you stick your thumb in the hole and it gets wet, your wish will be granted.

A small etching on the white marble parapet was written in runic script by a Viking mercenary.

Roman ruins top white travertine terraces formed by ancient hot springs.

A marvel of Byzantine engineering under the streets of Istanbul.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

Hear the quietest sound from across the dome.

Northern Ireland's Brobdingnagian stepping stones.