The US Navy's only submarine museum is also home to the world's first nuclear submarine.

Public outcry led to this bridge's unique character which celebrates a giant frog battle and also sewing.

This opera house along the banks of the Connecticut River has two Tony Awards to its credit but it’s never staged a single opera.

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

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

This lovely hilltop tower was specifically built to withstand 100 MPH winds.

Behind a bodega is a small museum of relics and ephemera showcasing the history of New York.

This innocent-looking townhome is actually a subway exit.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

Try not to get slimed in Tribeca.

The former site of an all-but-forgotten colonial landmark is now remembered by an often overlooked bas relief.

Dim sum, served in a grand old theater.

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

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

This impressive Boston holy house is the American mecca for Christian scientists.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

This handsome giant is said to mark the birthplace of the mythical woodsman and even had a cameo in a Stephen King novel.

This giant temperature attraction created some giant electric bills.

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

The largest body of water in Massachusetts annihilated four small towns just to slake Boston's thirst.

"Mock all and sundry things, but leave the saints alone."

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

An eccentric inventor's castle home with its own indoor weather system.