Spain's largest bullring offers a unique glimpse at architecture and history.

The final resting place of the great navigator, or maybe his brother.

This former charity hospital for elderly clergy houses some of Seville’s most treasured paintings.

The world's largest wooden structure.

The discovery of these rare, ancient artifacts led to the creation of a new museum.

This unassuming tree stump reportedly traces its roots to the famous pharaoh queen's reign.

Most-visited and most-photographed slot canyon in the American Southwest.

Dramatic river bend surrounds a natural red-rocked pedestal.

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

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

The fifth-longest natural arch in the world, and the longest outside China.

Ancestral Puebloan ruins, natural arches, and box canyons abound in this seldom-visited corner of Monument Valley Navajo Tribal Park.

Five candy-colored villages on the Italian Riviera.

The mysterious round rocks of Schooner Gulch.

A church of bones, decorated with 40,000 human skeletons.

One of the world’s largest collections of petroglyphs records 2,000 years of human activity.

A well-preserved Ancestral Puebloan ruin tucked beneath a desert cliff.

Hidden inside this Arizona fast food franchise is an in-depth exhibit on the famed WWII counterintelligence program.

The location where the iconic movie character declared it was time to go home.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

The "Greatest Sewer" of ancient Rome is one of the oldest sewer systems in the world, and is still in use.

CDMX's home for the world's culinary delights.

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