This Art Deco theater is the last remaining opera house in the “little Broadway of the North.”

The remnants of a 19th-century ironmaking complex hidden in the woods of Connecticut.

Ruins of the elaborate house where the enigmatic costume designer threw glamorous parties for New York's theatrical elite.

A monument to the one-armed geologist who led the first documented expeditions through the Grand Canyon.

These elusive, isolated rodents evolved into a distinct, locally iconic subspecies.

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

This picturesque Victorian ghost town was once a thriving mill community.

A castle inspired by medieval architecture is hidden in the woods of Connecticut.

This ancient Egyptian obelisk still bears the wounds of World War I.

This secret garden has bloomed into London's most unique hub of urban creativity.

A community of artists and entrepreneurs seeks a simpler life on London's waterways.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

One of America's first spies started out as a teacher in this little red one-room schoolhouse.

A humble air museum located in an original World War II aircraft factory.

This abandoned ironworks was once the most important military supplier in America.

This small-town pizzeria won the Hollywood lottery.

Three and a half miles of cliffs, rocky beaches, Gilded Age mansions and 40 Steps to nowhere in particular.

This giant monument of the RCA mascot is a beloved fixture in Albany, New York.

A living antique aviation museum in the historic town of Red Hook, New York.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Elevated freight railway turned wildly successful urban park.

A lone tower rises above the cliffs in a city park, offering fantastic views of the Connecticut landscape.

The Connecticut village named for its subterranean thunder.