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

One of its engravings is believed to be among the first representations of medical and surgical instruments.

The largest known Ancient Egyptian obelisk.

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

A preserved oasis with traditional Andalusian-style architecture and beautiful views of the Nile.

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

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

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

An endless sea of white conical domes.

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

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

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.

An ancient city exhumed from the depths of the ocean.

This remote mountain shrine is one of the most sacred Zoroastrian temples remaining in the world.

The largest covered bazaar in the world.

The cathedral stands in New Jufa, Isfahan's Armenian quarter that was established in 1606.

Colorful mineral deposits turn these mountains into an Impressionist fantasy.

Marked by the hand of the explorer Henry Morton Stanley.

Two Chinese dragons guard the caves of this medieval temple in Iran.

Iranian tombstones shaped like male and female sexual organs.

This circular Iranian jail was once a political prison run by the country's secret police.

This 17th-century structure is a beautiful testimony to traditional Persian architecture

This lake in northwest Iran has started turning from green to red more frequently than scientists are comfortable with.