America's oldest Eastern European synagogue provided the immigrants of crowded Lower East Side tenements a space of sanctuary.

The competition: breathe deeply as long as you can.

Prove you deserve to be fed by Kenny Shopsin.

A band of aerialists and circus performers putting on incredible shows in East Williamsburg.

A Romanesque sanctuary of calm amid the bustle of downtown Los Angeles.

Life-size bronzes of the Grinch, Cat in the Hat, Yertle the Turtle, Sam-I-Am, and the Lorax—and the author himself.

Try not to get slimed in Tribeca.

A series of fish plaques that are embedded in the malls of Ocean Parkway.

The lost town of Neversink, sunk by New York City.

Walk into the 19th century without leaving Brooklyn.

This innocent-looking townhome is actually a subway exit.

The highest rapid transit station in the world.

The one-stop shop for all of your superhero (or evil arch-nemesis) needs.

A huge resale shop for the cast-offs of the film & television industry.

The unassuming structure was part of a Major League Baseball stadium.

New York's oldest concrete structure is being preserved thanks to the gentrification of Whole Foods.

There aren't too many operational funiculars around, but Pittsburgh has two!

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

A portion of the old Pirates stadium over which a defining home run once flew still stands even after the rest of the stadium was torn down.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

It looks like a whale, it's part of Yale, and it's best-known by a nickname you can probably work out for yourself.

While many places make the claim, the Library of Congress says this restaurant is the birthplace of the hamburger.

This eclectic homestead is home to a miniature windmill and Connecticut's last tollbooth.

This lone tree and dramatic sandstone outcropping are so beloved by Michiganders they can be found on one of the state’s coins.