Once close to extinction, there is no shortage of elephant seals on the beaches of Año Nuevo State Park.

Elephant seals and sea lions have turned the abandoned buildings on this island into their endangered love shack.

Haunting and beautiful trees, doomed to die.

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

It's not your typical library, memorial, or book store.

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

The interior of the Overlook Hotel in "The Shining" was based on this Yosemite original.

Quite simply the largest tree in the world (by volume).

Go inside to really appreciate this 500-year-old technological masterpiece.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

Carvings in Turkey's Marble Road may have directed ancient Romans to a hidden brothel.

The alleged house of the Virgin Mary is tucked away in a park and nature preserve on Mt. Koressos in Turkey and is holy to both Catholics and Muslims alike.

Roman ruins top white travertine terraces formed by ancient hot springs.

As the Dead Sea continues to deplete, massive sinkholes open along its banks.

Neighborhood in Jerusalem is home to the ultra-orthodox haredim.

Mausoleum and Holy Seat of Antiochus I of Commagene.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

Large collection from the 3rd millennium BCE.

What once sat in the world’s spotlight is today a largely disused ghost complex.

A 2,000-year-old computer demonstrates remarkable engineering and astronomical precision.

Where commuters walk through remnants of an ancient Greek necropolis.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

The hallucinogenic center of the ancient world.