A clear blue swimming hole with hidden caves, still unexplored.

The most beautiful Taco Bell in the world even has surfboard parking.

Who needs fancy modern water slides when this giant North Carolina rock works just as well?

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

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

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

Must form and function forever remain at odds? Not if the Florida Department of Transportation has its way.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

A museum dedicated to the alleged Roswell Incident.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

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.

St. Augustine's record-setting narrow street was designed to protect against pirates.

This magnificent 18th-century hall consists of a maze of nearly a thousand interconnected passages.

A restaurant on Staten Island showcases a different grandmother’s cooking every night.

A room in New York City that contains 250 cubic yards of dirt.