Chicago's Navy Pier on Lake Michigan was a training hub for aircraft carrier pilots during WWII.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

Twice a day one of these tragic bronze mariners drowns with the tide to remember all those the sea has taken.

“Invented in Key West, Perfected in Brooklyn."

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

Beautiful mosaics cover the first stations opened on New York City's newest subway line.

A small chapel celebrating the spiritual bond between dogs and humans.

A 150-square-foot masterpiece of American landscape art is the crown jewel of this library and art gallery in Vermont.

Amazing views of Long Island Sound can be seen from this mountaintop tower.

At 135 years old and counting, this historic print shop is heaven for poster nerds and music buffs.

The grave of America's 11th president is not in some grand monument but instead it's hidden away on the grounds of the Tennessee Capital.

A drawbridge named for a potentially intersex Polish national who fought alongside George Washington during the American Revolution, and an example of "Pulaski Red".

A plaque immortalizes the spot where the early American spy said his famous last words: "I only regret that I have but one life to lose for my country."

The front yard of an Upper East Side town house hides the last fragment of one of New York's most famous theatres.

This innocent-looking townhome is actually a subway exit.

A modern zoetrope on the New York City subway.

This small New York museum examines Chinese history from its origins right up to its arrival in the city.

This Dutch Colonial home is the oldest remaining farmhouse in Manhattan.

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

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

In its day this historic fort held 100 cannons pointed in almost every direction to protect New York.

An artist's cute bronze subway sculptures belie his violent artistic past.

Manhattan's lighthouse, erected at the insistence of the unsinkable Molly Brown.

You can still ride this 100-year-old work of art in Brooklyn's largest public park.