A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

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

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

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

A curious fountain that has no water and includes Satan, a crab, and 9 giraffes.

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

A self-made museum in Queens, New York continues to display the work of a sculptor known for paving his own way.

The crown jewel of the Queens Museum is a nearly 10,000-square-foot architectural model of the city originally built for the 1964 World's Fair.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

This outpost of America's most popular fast-food restaurant is housed inside a palatial mansion.

All that remains of a magnate's dream home is a historic gate and an abandoned public pool.

A living antique aviation museum in the historic town of Red Hook, New York.

Why have you never heard of the second most popular tourist site in New York?

Inspiring Herman Melville and Henry David Thoreau, Mount Greylock in western Massachusetts is the highest point in the state at 3,491 feet above sea level.

This giant monument of the RCA mascot is a beloved fixture in Albany, New York.

The original Uncle Sam was actually a New York meatpacker who is buried under this historic grave.