Giant pigeon houses packed into city streets in Egypt.

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

An endless sea of white conical domes.

The museum within the Kom-Ombo Temple complex houses mummified crocodiles and mummified crocodile eggs.

Inside this 3,500-year-old tomb are remarkable ancient Egyptian paintings of African wildlife.

The oldest tourist graffiti in the world helped archaeologists identify the Pyramid of Djoser.

The oldest Egyptian obelisk still standing in its original site.

The ancient village known as Set Maat, or the 'Place of Truth,' located on this site served as a hub for intellectual and artistic endeavors.

This fortress was built using the last surviving stones from the Lighthouse of Alexandria, one of the Seven Wonders of the Ancient World.

The lost library of Alexandria, revived as a spearhead of cultural preservation.

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.

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

This unassuming tree stump reportedly traces its roots to the famous pharaoh queen's reign.

A network of ancient Egyptian tombs built into the cliff face along the Nile.

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

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.

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

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

A memorial to the most decisive Native American victory of the Plains Indian War.

This cemetery is one of the last remaining traces of a drowned old Western town.

The old fire tower is one of the last of its kind in the United States.