At 207 feet, one of the world's longest continuous escalators.

The romance of early commercial flight still fills this Art Deco destination.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

The world's oldest continuously operating airport was founded by the Wright Brothers.

A relic of FDR's brief foray into utopian urban planning.

Public opinion is still divided on this enormous sculpture in front of Baltimore's Penn Station.

One of the oldest surviving Swedish-American homes in the United States.

This 17th-century place of worship still celebrates holidays in the traditional Swedish fashion.

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

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

The first piece of public art dedicated to LGBT rights.

Alexander Hamilton’s creation caused quite a bit of controversy.

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

This Delaware River bridge is emblazoned with a catty slogan from a more prosperous time.

The mysterious canine hides atop a drain pipe on the back of the building, some say as a sneaky shoutout to Yale.

Elevated freight railway turned wildly successful urban park.

The last living thing to come out of the rubble after 9/11 is now a symbol of hope and resilience.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

One of the most enjoyable bits of history at Coney Island and “the most romantic ride in the world.”

New York's southernmost subway station is whimsically wavy.

A wooden rollercoaster that still delivers a thrill.

This outdoor gallery of graffiti-covered walls pays homage to the past, present, and possible future of street art.

One of only two commuter aerial tramways in the United States.

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