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.

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

A small Canadian town founded as a refuge for Loyalists following American Independence.

These powerful, if squat, Canadian waterfalls flow in different directions depending on the time of day.

Cliffs that hold fossils, including the earliest known reptile, dating back more than 300 million years.

Twice a day, the water of the Petitcodiac River flows upstream in a surfable wave.

Iconic rock formations that allow for exploration during high or low tide.

Go inside the house that inspired L. M. Montgomery to create one of literature's most beloved heroines.

Rusty red sands line the shores of this Canadian Province.

Gilded heaven for philatelists and architecture freaks, still in full working order despite sitting atop tremulous ground.

The winter home of millions of migrating monarch butterflies.

Where dogs like the rare "Fire-Tailed Border Cocker" run free on the mountainside.

One of the most remote lodges in the Amazon offers rare wildlife encounters and undisturbed views of the Peruvian rainforest.

The world's largest clay lick, where parrots gather to snack.

This stunning mass of ice spans 121 square miles and is still growing.

The inspiration for the Patagonia Clothing logo, Cerro Fitz Roy turns pink at sunrise.

A bright little alley in La Boca is a part of tango history.

105-foot wide giant metallic flower blooms anew every day in the heart of Buenos Aires.

Race through the maze, get your name on the sign.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

A shrine contains nearly 200 statues of the Buddhist deity Jizo, dressed in bibs by parents who have lost a child.

This precariously balanced boulder is said to be a hunk of stolen butter dropped by the gods.