Millions of years of oxidation make a drive down this winding Death Valley road surprisingly colorful.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

A small granite block at this monument's base is the only part of Lincoln's Tomb outside of Illinois.

Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it.

A historic covered bridge is but one example of an oddly prevalent American urban legend.

Pennsylvania's highest point is spotted with boulders which were pushed to the surface by nothing but cold.

An ideal wedding spot that is almost too ideal.

The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.

A modern ghost town whose inhabitants were driven away by the growth of nuclear power.

A planned settlement in Pennsylvania once housed the aristocratic refugees of the French Revolution.

The site of the little-known Pennsylvania battle that sparked the Seven Years' War.

This stone tower marks a lookout point over the historic Washington Crossing, and maybe some buried treasure.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

A pride of the state, this working museum crafts pottery mosaics in the style of Pennsylvania's earliest European settlers.

This eerily well-preserved coal town was saved from destruction by a Sean Connery movie.

Don't be fooled by this fake medieval facade even if it is almost 300 years old.

Created by one of England's most prolific labyrinth designers, inspired by Bath city history.

England's oldest surviving hedge maze has been confusing visitors for over 300 years.

The world's largest grapevine has produced a delicious harvest at Hampton Court Palace for almost 250 years.

An atomic bomb-proof strongbox protects the U.S. Constitution from terrorists and thieves.

A heroic pigeon that, through a barrage of gunfire, delivered a message that saved over 100 lives in World War I.

Perhaps the most scandalous statue of America's first president.

The Byzantine, pre-Columbian, and medieval art at this stately mansion are some of the most under-appreciated collections in D.C.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."