This legendary "evil" doll has been haunting the citizens of Key West for over 100 years.

This nature center has one of the largest collections of native raptors in the Pacific Northwest.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

A colorful architectural gem in Seattle's uniquely modern Central Library.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

One of the American Southwest's most extensive collections of Navajo rock art.

These imposing walls and towers look more like the ruins of a fortress than a monastery.

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.

At high tide this strange footbridge appears to have no purpose whatsoever.

Canada's accused-traitor-turned-folk-hero is buried under a red stone in a ring of his own.

The unusual lighthouse looms over waves of prairies with no sea in sight.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

These ancient sunken lanes were naturally tunneled into the soft ground by countless footsteps.

In an arboretum with hundreds of memorials to the fallen, this one might be the most poignant.

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

Built over an abandoned train yard, this hidden gem is full of winding paths and offers gorgeous views of Sydney Harbour.

An eccentric aristocrat brought these Australian natives to their current Scottish home.

Take a sea tractor to the Art Deco hotel on the island that inspired Agatha Christie.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

Bronze plates placed around this Scottish fishing village form a true-scale model of the solar system.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

These phallic stone spires once served as Tolkien's Paths of the Dead.

Nature's slip and slide.