Why have you never heard of the second most popular tourist site in New York?

Discovered by cows, these upstate New York show caves are presented with a healthy dose of psychedelic folk art.

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

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

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

Giant pigeon houses packed into city streets in Egypt.

It might not be the prettiest pyramid in Egypt, but it may be the muddiest.

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

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.

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

The forgotten mummies of Dakhla oasis.

Some believe that this ancient mural depicts technology far ahead of its time, but in reality it's nothing quite out of place.

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

Ancient Egyptian relief, claimed to depict an electrical light.

Brightly painted boulders scattered throughout the Sinai Desert.

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.

An abandoned outdoor movie theater in the Sinai desert.

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

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

An endless sea of white conical domes.

An ancient city exhumed from the depths of the ocean.

Ozymandias’ time-keeping temple.