A plaque memorializes the Boston location of one of the largest nightclub fires in history.

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

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

This site commemorates the former inn and restaurant where the chocolate chip cookie was first crafted.

New England's "Witches of Eastwick" locations, in all of their quaint white churched glory.

It took 275 years and four burials to finally put the Mayflower’s most famous passenger to rest.

Since 1947, this living history museum has been providing an immersive look at life in Plymouth Colony.

This stimulating sex toy museum is sure to arouse the interest of its visitors.

Mural fragments and various sculptures honor the longtime artist.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

This old abandoned sign flickers to announce a motel that isn't even there.

This statue honors the author's groundbreaking family story.

A total of 14 men held the title of "president" before George Washington—their historical legacies are enshrined in the lobby of a hotel.

The 72-foot giant escaped confinement in a large patch of mulch only to be reburied in the sandy shores of the Potomac River.

These massive concrete balls were used to mine gold in Virginia.

The house that Frank Lloyd Wright "(shook) out of his sleeve at will" at the age of 86.

The bank that helped fund the Mexican-American War and the purchase of Alaska met its downfall after helping Augusto Pinochet launder money.

The iconic D.C. restaurant where the Cuban Missile Crisis was negotiated, now a Walgreens.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

D.C. once had its own tiny rival to the New York Stock Exchange.

A 1,100-ton train fell through the floor in 1953. Workers got it patched up in just 72 hours.

A derelict bit of infrastructure from the canal that once ran through D.C. is landlocked in the heart of the city.

Look closely and you’ll notice that the color changes a third of the way up the tower.

A hidden passageway now marks the site of an assassination attempt on Ronald Reagan that some say broke a 140-year-old curse.