An ancient octagonal weather station named for the eight Greek gods of wind.

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

Skyscraper powered by wind turbines attached between its towers.

This bazaar is one of the oldest in the Arabian world.

A bizarre house filled with an astounding array of collections.

Not truly a ship nor a building, the Navy's first and last "landship" is now abandoned due to clerical issues.

The United States's largest hand-dug well is topped with a state-of-the-art museum.

America's largest man-made forest was planted in an effort to bring back the past.

Site of the 1879 Cheyenne Outbreak and the site where famed Sioux chief Crazy Horse met his fate.

This replica small town lets visitors take a stroll through the story of progress in the U.S. via thousands of Americana artifacts.

Other-worldly rock formations and ancient fossils abound in this unique stretch of Nebraska badlands.

This erect, phallic geological spire wasn't always named so domestically.

A more chill but no less fascinating version of the famous ancient archeological site.

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

When it was built in 1929, this historic bridge was the only place to cross the Colorado River for 600 miles.

These elusive, isolated rodents evolved into a distinct, locally iconic subspecies.

After a short-lived attempt to bring America in line with the rest of the world, this road was left in metric.

Hike the unusual hoodoos and rock formations that form this little-known natural wonder.

The highest point in Arizona is an oddly snow-topped peak within the otherwise arid state.

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

The largest natural travertine bridge in the world is nestled in a small canyon in central Arizona.

Limestone caves with spectacular showcase chambers.

This historic national park is covered in the stunning ruins of red rock pueblos.

A reproduction of earth's many biomes.