A popular swimming hole that hides one of America's most deadly diving spots.

An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.

A spur fit for a giant sits just off Highway 281 in Texas.

Housed in a century-old building, this museum's dedicated not just to soft drinks, but to the free enterprise system.

Official museum, hall of fame, and repository of the Texas Rangers.

Visitors can walk over the largest concentration of Columbian mammoths to have died from one event.

Some of the best pastries in "the Czech heritage capital of Texas" come from a gas station off I-35.

Belly up to the bar in Cowtown, don't forget to buy some boots.

Sitting in the arguable birthplace of the Wild West, this museum holds the largest collection of bronco busting bric-a-brac in the world.

A collection of beautiful crystals shaped like freshly plucked roses.

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

Stairs often replace streets on the steep slopes of this old mining town.

This church on a Tohono O'Odham reservation has stood since 1797.

Limestone caves with spectacular showcase chambers.

Las Vegas's very own 40-foot-tall fire-spewing praying mantis.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

An experimental, automotive replica of Stonehenge.

These Great Lakes sea caves accessible by boat in the summer turn into temples of ice reachable by foot in the winter.

At 207 feet, one of the world's longest continuous escalators.

The 72-foot giant escaped confinement in a large patch of mulch only to be reburied in the sandy shores of the Potomac River.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

Two large-scale sculptures of Adam and Eve greet visitors in the nude at the Time Warner Center in NYC.