This Connecticut chapel is a starkly modern, and surprisingly colorful, architectural rebel.

The ancient past meets the retro-future at these dinosaur tracks that are protected by a geodesic dome.

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

Books you don’t need in a place you can’t find.

A perfect circle of twenty-four mysterious holes dates back to prehistoric time.

Made of bronze and wearing a blue gown, this lady sat in the same location in the Yantic Cemetery for more than 119 years.

This tall Massachusetts folly got its name thanks to all of the purple prose its vistas inspired.

This naturally heated mountainous creek has created a group of neon blue pools of potentially deadly boiling water.

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

An Escher-inspired library dedicated to the wonders of the human mind, yet closed to the public.

Highly unusual subterranean stupa and adjacent cave monastery.

This hunter-gatherer architecture is believed to be the oldest religious complex known.

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

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

An enormous, inside-out glass globe built in 1935.

"World machine" built by an untrained Austrian farmer.

Macabre astrological automaton clock dating to the late 1400s.

Thousands of exquisitely carved stone water storage wells, hundreds of stone steps fill this exquisite medieval stepwell.