A modern zoetrope on the New York City subway.

The longest continuous underwater road in North America was built at the insistence of Franklin Roosevelt.

The highest rapid transit station in the world.

The sister plane of the C-123 shot down during the Iran-Contra Affair has found a new purpose in retirement.

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

Panoramic views of the city of New Haven and the Long Island Sound, with a side of history.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

This massive tea kettle was once a promotional stunt for the Oriental Teashop.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

This slender three-story building has also had several famous residents.

Phil Mortillaro uses keys to bring art back to the Village.

The first piece of public art dedicated to LGBT rights.

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

Mysterious stone tower featured in many alternative histories of the New World.

The only surviving fragment of the lost Narragansett Pier Casino.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

All that remains of the once-booming chain is a single orange-roofed restaurant.

A colorful public mural in San Antonio's West Side encourages students to stay in school.

The 40-foot-tall votive candle is the largest of its kind.

Three hundred years of preserved Spanish colonial history in San Antonio.

An extraordinarily ornate museum in San Diego holds wondrous anthropological treasures.

This sparsely populated town offers a look back in time.

If drivers cross the rumble strip on this stretch of Route 66 at just the right speed it plays "America the Beautiful."

Home to New Mexico's longest bar, this watering hole also has a mining museum and a haunted history.