Charnel house at the foot of Mount Sinai.

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

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

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

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

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

The massive cave church of Cairo's Zabbaleen community is one of the largest Christian churches in the Middle East.

Ozymandias’ time-keeping temple.

A statue honors the children who fought Nazis in Poland.

Polish luminaries and masterful folk art find sanctuary in this unique cemetery.

An underground city of salt.

A naturally beautiful, seemingly bottomless deep blue spring.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

The celebrated eyesore created by starry-eyed sweethearts.

An ancient Egyptian temple in the middle of Madrid, Spain.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

A fortified city, home to a remaining population of five families

A land of debatable treasure.

The wild west is still alive and well at this authentic mining town watering hole.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

Odd outsider art installations surround a Gold Rush-era ghost town.

Millions of years of oxidation make a drive down this winding Death Valley road surprisingly colorful.

A massive volcanic plug is now a protected area that hosts a number of bird species.

Offering commanding views of the California coastline, this restaurant was a hub for the artists and bohemians of Big Sur.