This rare example of a "tidefall" is a spectacular drop from the cliffs down onto the beach.

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

Eons old volcanic activity created one of the most stunning rock formations in the United States.

This Big Sur waterfall drops 80 feet directly into the Pacific Ocean, and inspired the hillside house up top.

Canyon walls shrouded in ferns.

An ancient glacial pothole waterfall in the heart of the Green Mountains.

These mysterious petroglyphs in Vermont reflect a troubled history in the treatment of Native American culture.

This cavernous abandoned marble mine is popular with ice skaters in the winter.

Welcome sign announcing Haverhill, MA, as the birthplace of horror rocker/artist/director Rob Zombie.

True to its name, this bouncy walkway may be the world’s smallest suspension bridge.

America's oldest archaeological site or a muddled case of wishful thinking.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

A Natural History and Science Emporium.

Over fifty whirling pools left by the glacial age.

The world's largest kaleidoscope, designed by a 1960s psychedelic artist.

A once grand hotel is being retaken by the wilderness it once capitalized on.

The kind of mixed-up place that drives archaeologists crazy.

A tiny islet just off Long Island offers a wealth of infectious curiosities.

Reclaimed by nature, the ruins of Doodletown, New York are remnants of a town consumed by a state park.

Protecting the future of some of the rarest and most misunderstood mammals of North America.

137 graves holding New England's earliest residents.

An archival collection of over 2,200 case studies which includes human brain specimens and tumor specimens.