Continuing the tradition of the dime museum in style.

A giant Troll lurks under one of Seattle's oldest bridges.

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

Enormous lake at the bottom of a unique cave system.

A layered tribute to the work of mosaicist Isaiah Zagar.

America's most famous piece of self-built architecture.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

Towering basalt columns, a creation of fire and ice.

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

This Boston medical museum features the skull of the famous medical case of Phineas Gage.

A hand-built folk art installation covered with messages of God's love.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

A trash dump made beautiful by nature's power.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

A snapshot of the city's fascinating voodoo culture.

Dramatic river bend surrounds a natural red-rocked pedestal.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

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

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

On the Oregon coast there is a natural hole that seems to be draining the sea.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.