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

Rippling sand dunes frozen in the Arizona rock.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

The fading, forgotten remains of a once bright and booming factory.

Built in 1933, this unique ballroom is nicknamed the "floating dance floor."

One of the most scenic falls in Massachusetts has a history of death and grim legend.

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

This Florida sinkhole hides a rainforest-like micro-environment in its depths.

An exercise in patience and imagination, where Mother Earth turned common stuff into precious hidden treasures.

Even Henry David Thoreau found this glacial pothole irresistible.

A popular place to pick up prehistoric coral fossils from the time when Michigan was an ocean.

The Bong-area park police have asked visitors to please, stop stealing the signs.

A raised boardwalk winds through a thicket of stunted, century-old trees no more than nine feet tall.

This beautiful ancient site is dotted with perforated sandstone pillars considered sacred by some Native American groups.

Surprisingly aquamarine waters fill deep lakes formed at the end of the last ice age.

These picturesque Hawaiian falls are home to a rare species of fish that uses a special sucker to climb up cliffs.

The world’s first museum dedicated to the history of childhood opened in Edinburgh in 1955.

A magical sinkhole on the Yucatán Peninsula is adorned with mini waterfalls and hanging vines.

Coast along one of Japan’s mountain railways for coveted views of magnificent hydrangeas.

This edible park is open to any and all foragers.

A lavender labyrinth so large it’s visible on Google Earth.

Twelve hundred stone carvings guard this off-the-beaten-path Buddhist temple.

Lines from a walking song are etched into a rock in Natural Bridge State Park.

History, geography, and shamanism meet in this eye-catching monument to the greatness of three empires.