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

Oldest synagogue in the United States.

The tennis legend used this racket while breaking the race barrier and becoming the first Black man to win the US Open.

Three and a half miles of cliffs, rocky beaches, Gilded Age mansions and 40 Steps to nowhere in particular.

Rising 30 feet in the air atop Quarry Hill, the Old Powder House is the oldest stone building in the state of Massachusetts.

A three-piece musical sculpture installed between the subway tracks at Kendall Station near MIT.

MIT students continue the legacy of beloved professor "Doc" Edgerton through learning by doing.

In 1958, an MIT fraternity pledge laid down on this bridge and instituted a new, unique unit of measurement.

This bridge was the birthplace of a unit of measurement based on a fraternity joke.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

An almost life-sized elephant named Ms. Ellie greets visitors at this jumbo-themed museum.

Marvel at this turn-of-the-century masterpiece that has been turned into a rather stately supermarket.

The 25th President's marble casket can be visited in this classical Ohio tomb.

Mausoleums, astronomy, and animatronic dinosaurs at this memorial to an assassinated American president.

An office built to look like a giant basket.

An unassuming 13-acre park is home to over 12,000 roses.

See prehistoric footprints, plus two complete mastodon skeletons.

Where Cusack's record store from the film "High Fidelity" was located.

Once called the "Polish Gold Coast" it is an icon of the neighborhood that bears its same name.

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

A display of magnificent stained glass windows is the first exhibit of its kind.

A giant Troll lurks under one of Seattle's oldest bridges.

Now housed in a museum, this giant pink elephant stood in downtown Seattle for more than 60 years.