Conflicting markers on its floor tell a tale of two city centers in San Antonio.

This downtown Dallas art installation is always on the lookout.

A serene temple with stunning stained glass hides in downtown Dallas.

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

Strange red rock formations that have been attributed to a higher power for hundreds of years.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

This quiet park's strange sedimentary spires were named after Kodak's color film.

Most-visited and most-photographed slot canyon in the American Southwest.

A sharp bend in a dramatic river canyon cut through red rocks.

Settled by the Church of Jesus Christ of Latter-day Saints in 1859, this abandoned frontier town has appeared in several films.

D.C.'s first central library was born out of a chance encounter with the philanthropist whose name it bears.

A swamp that was the site of prehistoric water burials also managed to preserve its corpses for millennia.

Strange beasts lurking in a garden are all that remain of a quirky, short-lived theme park.

This Czech church doubles as something of a permanent fashion exhibition for a statue of the Infant Jesus.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

The remains of what was the most important religious complex in coastal Peru for over a millennium.

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

Shop the world's largest number of ice cream flavors, ranging from delightful to downright bizarre.

These Egyptian statues have survived for 3,400 years and were an acoustic wonder of the ancient world.

California's oldest wind harp represents a historic piece of America's Danish history.

Machinery left over from California's once thriving mercury industry now attracts artists and explorers.

A Mysterious Masonic tomb in San Luis Obispo.

A massive volcanic plug is now a protected area that hosts a number of bird species.

This stretch of beach along California's central coast is a busy highway for the largest seal in the northern hemisphere.