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.

An enormous, inside-out glass globe built in 1935.

This impressive Boston holy house is the American mecca for Christian scientists.

One of the last remaining World War II Victory Gardens in the U.S. is quietly growing across from Fenway Park.

Two thousand artifacts from around the world collected by one woman who loved to travel.

A beautiful Victorian-era cemetery, complete with a miniature village.

The homestead of American patriot John Adams.

From economic backbone of a community to deadly diving hole, these former stone quarries are now a park for rock climbers and graffiti artists.

The world's largest piece of copyrighted artwork.

On a former island, this old fortification once used to protect the Boston Area and started Edgar Allan Poe in his military career.

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

An eccentric inventor's castle home with its own indoor weather system.

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

A forlorn fishing village on the coast of Labrador, full of shipwrecks and Spanish gold.

An ancient Viking village in North America that predates Columbus by 500 years.

The first transatlantic wireless signal was received at this 17th-century fort.

The tiny airport in remote Newfoundland that inspired a hit musical is also a modernist architectural gem.

Possibly the most beautiful carillon in the world, set atop Iron Mountain in Florida.

A haunted hill that supposedly defied gravity.

A failed utopian experiment for British expats in the American South is now a Victorian village frozen in time.

Labor provided by Great Depression-era programs restored these 25,000 acres in Tennessee.

This large cave is a summer home to thousands of bats and has a rich history dating back to prehistoric times.

Enormous lake at the bottom of a unique cave system.