Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

A wondrous old library overlooking the nation's capital.

A monument in a town outside of Boston celebrates the visits of Edgar Allan Poe.

The Boston square dedicated to the dark poet who was born nearby.

This otherwise unremarkable ski town building marks the site of Butch Cassidy's first robbery.

This underfoot portrait is the work of a disgruntled painter inspired by a tragic poem.

A mental health hospital dating back more than 139 years, now features a museum.

A downtown park built on top of unclaimed graves.

This "zoo" is a cross between a junkyard and a sculpture garden, featuring animals you won't see anywhere else.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

A technicolor place of worship for Elevationists.

A terrific purveyor of natural history objects and curios.

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

A wunderkammer hidden on the top floor of the Hartford statehouse.

According to legend, Bob Dylan sneaks in twice a year to eat dinner with Jack.

The site of the little-known Pennsylvania battle that sparked the Seven Years' War.

A lonely memorial to the Challenger Space Shuttle, honoring the astronauts who died in 1986.

This 29-ton granite ball spins around at the slightest touch thanks to a scientific phenomenon.

This road in the Great Smoky Mountains was supposed to assuage a displaced community, but ended up a $52 million dead end.

This lonely waterfront memorial to the men of the Titanic was erected by the "Women of America."

This grand gothic brewery has been pumping out suds for over a hundred years.

The oldest farmer's market in America is so ancient it was approved by the King of England.

Connecticut's shot tower is near the end of its life.