A gardener's enduring labor of love is spread throughout a small Vermont town.

A folk-art cottage and hotel straight from a Slavic fairy tale.

A highway marker that honors a former spy plane pilot and local hero.

A massive horizontal lever press comprising parts from the 17th century.

A Florida college boasts the world's largest single-site collection of structures designed by Frank Lloyd Wright.

This former theme park in New York's Adirondack Mountains fell into ruin before being resurrected as a state-run campground

This sandstone gorge in New York State's Adirondack Mountains is home to waterfalls, flumes, and more.

Journey through a mesmerizing array of board games inside this museum.

Narrow gorges and deep pools created by long-ago glaciers.

A bridge that has seen many reiterations over its lifetime.

A glimpse of a waterfall is reached by a steel catwalk along a slot canyon located in an Ouray city park.

A dangerous narrow-gauge railroad once traced a route through this striking canyon.

This spooky road cut through a mound of ancient coral might be haunted by a witch.

One of the best-preserved Native American mounds remaining in the southern United States.

The steepest tramway in North America provides stunning views of the out-of-the-way Wallowa Mountains in northeastern Oregon.

The ruins of a resort and casino sit on the banks of this blue hole spring that pumps 70,000 gallons of warm, clear water every minute.

At this gas station in the middle of the desert, a convenience store has been carved directly into the rock.

This incongruous small ferry across the Willamette River north of Salem, Oregon has been operating continuously since the 1850s.

The well-preserved remnants of a bridge that once made up a WW1-era military railroad.

A small obelisk commemorates the launch site of the world's first liquid-fueled rocket.

A short boardwalk through a swamp leads to the spot from which the Louisiana Purchase was surveyed.

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

This large artificial waterfall in Washington state was merely an incidental byproduct of a technological megaproject.

Only ruined buildings and abandoned charcoal kilns remain of this once bustling Wild West boom town.