Once home to seven different roller coasters, Glen Echo has undergone many transformations since its founding in 1891.

Proto-CIA agents trained with grenades in the sand traps and fired machine guns from the fairways.

The semi-reclaimed ruins of this canal were once part of an ambitious plan to reroute the mighty potomac.

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

This Delaware River bridge is emblazoned with a catty slogan from a more prosperous time.

The Dover International Speedway is home to a towering, concrete-skinned, racecar-hungry behemoth.

The historic home still shows the scars from a little run-in with the British in 1813.

Designed to commemorate the founding of the first settlement in Delaware.

A grotesque Fiji merman dwells within this traditional Dutch-style building.

This unassuming brick building has survived fires, storms, and more to bring entertainment to one Delaware town.

World War II-era bunkers are hidden under the beaches of this picturesque park, which is still scattered with wartime watchtowers.

The land is home to swimming ponies and a legendary 18th-century treasure.

This shifting North Carolina sand dune is an odd little desert surrounded by oceanic forest life.

The Cadillac Ranch for monster truck aficionados.

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

Erosion and various mineral deposits give this striking canyon its distinct color and soft appearance.

Thousands of years ago, Indigenous people painted images onto these canyon walls that are still on display today, provocative, mysterious, and enduring reminders of the people who lived here long ago.

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

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

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

This site is home to ancient petroglyphs and pictographs dating back to 6,000 B.C.

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

Despite its name, this route in southern Utah offers a heavenly day trip.

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