Instruments, apparatus, and rare books all relating to chemistry and its related sciences.

Ant sculptures march up the side of what used to be an iconic spot in punk rock lore.

A daily replay of the experiment that proved the rotation of the Earth.

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

This modern castle sat empty for decades before a fire inspired its builders to complete its luxury halls.

The world's longest known cave system.

Outsider art meets paleontology at this roadside reptile repository.

The largest cemetery in Louisville is the final resting place of Col. Sanders and Muhammad Ali.

The grave of the iconic Kentucky Fried Chicken mascot features a bust of the man behind the goatee.

This railroad overpass is said to be home to a murderous goat-man whose very legend has led to very real deaths.

The highest point in the state of New Hampshire, and while unlikely "the worst weather in the world," it sure seems that way to hikers.

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

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

A tour de force of a fountain, memorializing a man who loved fountains more than anything else.

A model of a dinosaur that was named for Andrew Carnegie stands outside the museum that also bears his name.

Running under an entire mountain, the longest highway tunnel in North America is kept fresh using portal fans and jet fans.

Shoreline strewn with the remains of ghostly fallen trees.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

The land is home to swimming ponies and a legendary 18th-century treasure.

Quirky castle designed by the American actor best known for portraying Sherlock Holmes on stage.

This lush forest valley was once mined for lumber to the extent that it was once nicknamed "The Pennsylvania Desert."

"Dark Sky Park" is heaven on Earth for astronomers, one of the rare U.S. locations with no artificial light pollution.

Quite simply the largest tree in the world (by volume).

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.