A mysterious stone embedded at the base of a historic Boston building.

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

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

Bronze sculpture celebrating the relationship between Churchill and Roosevelt.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

Children's hospital in London that operates on royalties received from Peter Pan, which J.M. Barrie signed over in 1929.

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

Elevated freight railway turned wildly successful urban park.

Go inside to really appreciate this 500-year-old technological masterpiece.

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

Rusty red sands line the shores of this Canadian Province.

This historical air terminal in Houston is slowly becoming an aviation museum dedicated to the city's aeronautical history.

The highest point in the state of New Hampshire, and while unlikely "the worst weather in the world," it sure seems that way to hikers.

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.

Experience a charming 1930's version of "infotainment."

Macabre astrological automaton clock dating to the late 1400s.

The only surviving prototype for Buckminster Fuller's house of the future.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

The oldest hall in Iceland was written of in the Sagas and features a centuries-old escape tunnel.

The site of Paul Revere's historic two lantern warning.

This popular Boston haunt is reminiscent of a time gone by, when slow cafes and sweet-smelling smoke wafting from patios was the norm.

A historic bridge with a lovely acoustic anomaly.

One of the indelible moments of the American Revolution took place at this location.

This one has sailed five times as far as Sir Francis Drake's famous ship.