An unusually designed bridge from the 1920s was built to withstand the tides and winds of Maine.

The northernmost international land border crossing in the United States.

Mosaics, storks, and brothels—this ancient city has it all.

A once crucial portion of the Long Island railroad still lays abandoned, waiting to be turned into an urban park.

Where the four original members of the Ramones hung out and revolutionized punk rock.

A terrific purveyor of natural history objects and curios.

A station built to repel pirates now attracts wealthy vacationers.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

Twenty-seven massive radio antennas on the high plains of New Mexico search for life on other planets.

This impressive tunnel was dug entirely by hand over the course of 36 years.

One of the most unusual geological features, recognizable from a dozen hit movies.

The interior of the Overlook Hotel in "The Shining" was based on this Yosemite original.

Quite simply the largest tree in the world (by volume).

The first bridge observation tower in the U.S. offers one of the best views of Maine.

An abandoned network of military bunkers and tunnels open for anyone willing to descend into the darkness.

100 massive sculptures in the Hudson River Valley.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

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

Long the exclusive domain of birds and vagabonds, this little-known Central Park peninsula is open to the public once more.

Slyly buy a shake in the Parker Meridien lobby.

Read a book next to a Midtown waterfall.

A small peaceful park and waterfall tucked amid the urban grind of Midtown Manhattan.

A subterranean house of worship carved right out of the bedrock.