Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

This huge dam across the Colorado River caused an armed standoff between two U.S. states.

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

Sleep where gangsters fell amidst smoke and flame, with nary a bullethole to show for the legendary struggle.

A nature and cultural preserve named for its multitude of petroglyphs carved by the Northern Sinagua people.

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

The highest point in Arizona is an oddly snow-topped peak within the otherwise arid state.

These free-roaming horses were once destined to disappear from the land.

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

This striking public art installation is suspended above a public park, designed to gently move in the breeze.

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

A reproduction of earth's many biomes.

This botanical garden has been nicknamed "Alabama's Little Corner of Greece."

These ruins are all that's left of the former Alabama State Capitol.

You'll need cowboy boots to trek to this old-fashioned saloon nestled in a giant natural cave.

The highest point in Alabama was almost completely deforested, but is now home to protected towers and trees.

This architectural triumph is the only Frank Lloyd Wright house in Alabama.

This NASA test station is home to some of the world’s largest and most powerful space environment simulation facilities.

Acres of English cottage gardens, unexpectedly nestled in a Cleveland suburb.

An unassuming 13-acre park is home to over 12,000 roses.

An unusual, super-sized grocery adventure awaits in an Ohio suburb.

You can walk through the first Boeing Air Force One, which famously carried JFK's casket from Dallas back to D.C.

The overgrown remains of an old rail bridge rise above the valley like ancient Greek ruins.

Inside, ancient treasures. Outside, modern contradictions.