This elaborate towering structure was once famed for its revolutionary height.

Yo, Adrian!

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

This Philly cemetery is the eternal home of many famous area residents, including Rocky Balboa's wife.

Huge masonic hall in Philadelphia with lavishly themed rooms.

This Fifth Avenue church has long been the favored worshiping place of Broadway actors and vaudeville performers.

The site of the deadly Triangle Shirtwaist Factory Fire.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

Visit the monolithic tomb of America's most famous general.

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

A clock set into the concrete outside a Manhattan jeweler has been telling time underfoot for over a century.

Walk over a 150 year old manhole.

A popular European tradition makes its way to the states on one of America's most famous bridges.

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

Great place to have a drink and a bite to eat in an atmosphere laden with New York's Bohemian past.

Once the tallest building in the world and the site of "the highest dinner ever held in New York" this building now holds the most expensive penthouse in the city.

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

Tucked away amidst some of the most famous addresses in the world is New York's only fraction of a street.

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

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

Elevated freight railway turned wildly successful urban park.

A towering tribute to decisiveness stands on the spot where Brigham Young and his followers decided that this must be the place.

A wall of chewing gum moonlights as collective art.

A walk through the historic city center, under the streets of Seattle.