Every weekend, the parking lot of this Buddhist temple turns into a Thai street-food paradise.

A classically trained chef makes beloved burritos inside a gas station.

An overlooked marble is the only surviving in-place 18th century example of the measurement that changed how we define distance.

An architect transformed this abandoned cement factory into his castle-like workshop.

A breathtaking 19th-century trail overlooks Lake Tahoe.

This improbable contraption was passed down through five generations of industrious Tennesseans.

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

Some of Arizona's best spit-roasted tacos al pastor can be found at a weekend swap meet.

A natural history wunderkammer in the middle of the desert.

The biggest solar telescope in the world helps reveal the secrets of our sun.

An urban laboratory.

Thousands of Mexican Free-Tailed Bats soar around an abandoned storm drain at sunset each summer.

The largest natural travertine bridge in the world is nestled in a small canyon in central Arizona.

The world's largest rose bush has literally outgrown the pioneer museum it was planted behind.

A classic Route 66 landmark that was built with scrap lumber and is held together with kitsch and puns.

The world's largest military aircraft cemetery.

Ancient pueblos built into the base of a natural canyon wall.

In a 345-million-year-old cave that's 200 feet underground, dinner awaits.

The story of Two Guns, Arizona could easily be described as a Shakespearian tragedy on Route 66.

America's only nuclear missile silo open to the public.

Ancestral Puebloan ruins, natural arches, and box canyons abound in this seldom-visited corner of Monument Valley Navajo Tribal Park.

A stealthy Apache hideaway that became the haunting site of a mass grave.

An arsenic-filled pool in the Grand Canyon takes on the appearance of a giant, overflowing pumpkin.

Eons ago, a rushing lava river formed this pristine passage through solid rock.