The natural hot spring that was integral to the creation of Canada's first national park.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

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

This historic patch of real estate offers a glimpse of colonial Boston.

This nearly 200-year-old restaurant's history includes an exiled French prince, JFK, and a very hungry Daniel Webster.

The site where Charles Dickens gave his first public reading of "A Christmas Carol" in the US.

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

All that remains of this Massachusetts town, demolished in the name of progress, is a stone marker.

The largest body of water in Massachusetts annihilated four small towns just to slake Boston's thirst.

Friction between grains of sand cause a curious "singing" sound.

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.

An overlooked memorial honoring the local Washington residents who died in World War I.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

Centuries-old hoofprints and wagon tracks reveal themselves after a good winter storm.

This beautiful Cape Cod beach offers dazzling views and an interesting historical footnote.

The Cape Cod house that whaling built.

The largest glacial erratic boulder on Cape Cod.

These three lighthouses played a fundamental role in the maritime life of Eastham.

A tunnel with windows, so you don't miss out on the impressive views.

A tiny plaque marks the location of the water source that facilitated the birth of modern-day Boston.

A slightly creepy gallery of plaster cast models in the same museum as Michelangelo's David.

The middle finger of modernity.

These medieval skyscrapers dominate the skyline of this small Tuscan town.