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

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.

This memorial park is also the original site of Queen Cleopatra’s Caesareum, whose pillars now stand in London and New York.

A subterranean necropolis blending Egyptian, Hellenic, and Roman traditions and art styles.

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

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

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

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

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

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

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

Ozymandias’ time-keeping temple.

These artifacts were discovered during the construction of the airport, with some dating back to the Neolithic period.

As the oldest natural history museum in the Americas, these halls contain everything from dinosaur bones to biological samples collected by Lewis and Clark.

A daily replay of the experiment that proved the rotation of the Earth.

The origin of this mechanical boy was a mystery until he revealed his maker by writing it in perfect cursive.

A tour de force of a fountain, memorializing a man who loved fountains more than anything else.

Venture into the past with an unlisted exhibit hall featuring extinct birds.

A high school astronomy enthusiast designed this model of our solar system to be traversed on foot.

While not recognized by Guinness, this chocolate waterfall is likely to be the world's largest.

In 1912, this idyllic Alaska landscape was blown apart in the largest volcanic eruption of the 20th century.

Each tide uncovers a shoreline where Virginia’s prehistoric past washes up.

Considered by many to be one of the most dangerous highways in Alaska.