A science teacher's dream.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

Once at the center of U.S. finance, the historic Trading Room was meticulously recreated piece by piece and rebuilt in the Art Institute.

Comprised of thousands of cave temple carvings this cornucopia of ancient Chinese stone art is unrivaled anywhere in the world.

The ancient settlement attracts tourists from all over looking to learn about the Chinese vision of the afterlife.

Hundreds of caves filled with thousands of centuries-old statues and murals.

A lush desert oasis in the shape of a narrow crescent.

The western-most fortress on the Great Wall of China has gone from a strategic stronghold to a kitschy tourist carnival.

The most famous location in China was home to whole dynasties worth of imperial rulers.

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

The high point on the 16th president's eponymous roadway is marked by a massive version of his head.

Surrounded by a hundred mile radius of billboards, Little America is a roadside attraction whose primary appeal is hospitality.

Creek water that starts here has a 50/50 chance of ending up in the Atlantic or the Pacific.

The first declared National Monument in the United States.

A beautiful geyser under environmental threat.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

This monument to the victims of a tragic explosion is said to turn and look at passing cars.

Florence’s mother built a stairway down to her daughter’s coffin so she could comfort her during storms.

Originally used to sell brandy, the bull-shaped billboard became an iconic symbol of Spain.

An eerie collection of the surviving structures from a past celebration of the future.

Spain's unique Mosque-Cathedral has been a place of worship for both Muslims and Christians throughout its history.

Spain's stunning solar energy plant.

The world's largest wooden structure.

Considered the birthplace of the Copper Age and Bronze Age, the river is tinted red from 5,000 years of mining.