A secret climbing tree hides along the side of a Costa Rican road.

Wee (and not so wee) footprints that insects and reptiles of the Paleozoic Era left behind.

This is one really big nut.

Twice a year, visitors can tour the desolate site that birthed the Atomic Age.

A phenomenal assembly of pueblos in New Mexico is the most complete example of ancient ruins north of the border.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

Seemingly grown on some other world, these New Mexico rock formations look like a disused science fiction set.

Driftwood dinosaurs lurk within trees covered in a rainbow array of avian abodes.

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

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

This giant monument of the RCA mascot is a beloved fixture in Albany, New York.

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

There must be a pun in this haystack somewhere...

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

Elevated freight railway turned wildly successful urban park.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

A tribute to Ponce de Leon's supposed quest for eternal youth.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

This weeping, 10-foot-tall sculpture was a maquette for a 9/11 memorial.

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

This local gem houses the largest collection of pre-Raphaelite paintings outside of the U.K.

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

A blend of art, antiquities, and Americana fill this museum, surrounded by whimsical, enchanting gardens.