On the Oregon coast there is a natural hole that seems to be draining the sea.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

The largest island on the great salt lake is home to curious creatures and strange stories.

Dramatic river bend surrounds a natural red-rocked pedestal.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

The drama of nature in full effect in this Nevada State Park.

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

Death rituals and sacrifice inside a Peruvian megalith.

If you’ve ever seen a picture of Machu Picchu, then you’ve seen a picture of Huayna Picchu—you just didn’t realize it.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

66,000 pieces of art, donated by one of the world's richest men.

These ancient sacred grounds granted amnesty to those who managed to reach them.

Native Americans built this circle of stones, which was used to predict astronomical events.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

Now nearly dry, this lake is said to be the ancient home of the Lady of the Lake, and was once thought to be bottomless.

A fantastic castle rumored to be the birthplace of King Arthur.

This neolithic stone grave has been altered and restored so often its now more neo than lithic.

Famously misunderstood wonder of the ancient world

This well-preserved Cistercian Abbey in a romantic pastoral setting has inspired artists like the poet Wordsworth.

A giant white horse drawn on an English hillside may not have been intended to be a horse at all.

Giant naked man on a hillside.