The cliff and rock formations are made out of Sioux Quartzite.

This sculpture gallery is home to magnificent beasts made of scrap metal and found objects.

This seasonal soft serve shack has been doling out silky swirls since 1951.

A natural sandstone bridge hidden in the Sewanee forest.

One man’s religious convictions led him to build this stone castle meant to withstand an apocalypse.

While knives are the main feature in this store, visitors will also find dinosaur bones and meteorites.

An ancient cave system in Tennessee’s Appalachian foothills converted to a 1,200-person music venue.

The world's largest collection of porcelain "veilleuses-theiere," or night light teapots, includes four that belonged to Napoleon.

This park contains one of the largest concentrations of cedar glades, a unique and rare ecosystem.

Hiding behind a grocery store is a spectacular cavern carved as part of an old limestone quarry.

The first full-scale tunnel built in America is short but scenic.

A Memphis park where you can walk the whole Mississippi River in one go.

This Texas home and garden was the masterpiece of a British portrait painter.

A few times a day, you can see an animatronic cowboy shoot-out.

An entire home filled with over 3,000 pieces of Santa memorabilia in glass cases, walls, on Christmas trees, and even in the bathroom.

The bridge continues the legacy of President Franklin D. Roosevelt's New Deal policy.

The deadly but beautiful ornamental oleander was planted all over the island of Galveston after the hurricane of 1900.

This stone windmill marks an old, mysterious homestead in what is now central Austin.

A Bhutanese temple gifted from the isolated Himalayan kingdom is now a surprising cultural gem located at the University of Texas at El Paso.

A free, canine-friendly alternative watering hole near the more famous Barton Springs.

Colorful curls of hand-blown glass form a captivating tower in San Antonio's Central Library.

An ivy-covered arch bridge dedicated to Tejano music singer and legend Rosita Fernandez.

A spring-fed pool so deep it's used for scuba diving as well as swimming.

A Victorian mansion, painstakingly reproduced to appear just as the the Munster's family home did on TV.