A historic 1890s architectural masterpiece with an iconic clock tower that, once open to the public, now faces an uncertain future.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

The oldest surviving bridge in New York City, which reopened to pedestrians in 2015.

This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.

The "Seinfeld" diner.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

This little museum is built on a theater that was once a wildly elaborate speakeasy.

A dilapidated dock tells the story of Titanic's missed arrival.

Try not to get slimed in Tribeca.

This small-town pizzeria won the Hollywood lottery.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

A giant green dragon crawls down from the roof of the Providence Children's Museum.

The idyllic colonial home of the artist behind the famous portraits of George Washington and Thomas Jefferson.

An unexpected Easter egg lurks in the background of a cherub wall relief at the Breakers mansion.

Rhode Island's tallest building bears a resemblance to the "Daily Planet" building and has been empty for more than five years.

The final resting place of the famous Rhode Island lighthouse keeper who heroically saved dozens of people from drowning.

An architecturally unique lighthouse that had to be lifted up and moved to avoid falling in the sea.

The only surviving fragment of the lost Narragansett Pier Casino.

A single light illuminates one man's overshadowed contributions to street lamp history.

Eco-friendly island mansion.

A 60-room castle constructed by a horse-racing heir.

The secluded beach getaway from Wes Anderson's dreamy summer romance.