It's safe—and permitted—to walk across these twin natural sandstone arches.

This giant ice cream cone is the last remaining icon of a Salt Lake City staple.

This gallery of prehistoric red ochre art lines the wall of a scenic segment in Utah's San Rafael Swell.

Few things look more out of place than the electric blue ponds in the reddish-brown desert of Utah.

One of the world’s largest collections of petroglyphs records 2,000 years of human activity.

A tunnel with windows, so you don't miss out on the impressive views.

Once a menacing challenge for trailblazers, this trail is now the most scenic drive in Utah.

The fifth-longest natural arch in the world, and the longest outside China.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

This plaque honors the unsung Black songstress once known as the “greatest singer of her race.”

From horses to stainless-steel trucks, this iconic Providence burger wagon is one of the oldest mobile diners in the country.

Last residence of H.P. Lovecraft featured in his story "The Haunter of the Dark."

A 19th century library favored by Edgar Allan Poe and H.P. Lovecraft, known by locals as "the Ath."

At the birthplace of American railroading, a world-class collection of historic trains.

Baltimore's classic clock tower was once topped by a rotating, 20-ton medicine bottle.

Once America's tallest structure, now a Baltimore landmark.

A monumental statue of RCA's mascot now sits atop a historical society roof after a life of moving around.

The massive machine creates cracking displays of indoor lightning.

Memorial of the Salem witchcraft hysteria in the town of Danvers, where it all began.

Nearly 300,000 acres of wildlife, natural splendor, and a hidden ghost town have been designated a national monument.

The highest concentration of petroglyph sites in Gold Butte National Monument, plus an improbable early 20th-century dam.

An unexpected sinkhole in a desert flat within Gold Butte National Monument.