The history of the tea trade is told in bas-relief on this historic pair of Boston doors.

This landmark cemetery in Boston was created more than 300 years ago.

A museum dedicated to the quirky and colorful world created by Springfield's favorite son.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

Life-size bronzes of the Grinch, Cat in the Hat, Yertle the Turtle, Sam-I-Am, and the Lorax—and the author himself.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

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

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

The Boston square dedicated to the dark poet who was born nearby.

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

Guns that have been defending San Francisco since 1904.

Explore the dark underground corridors of this graffiti-covered former military fortification.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

Historic Hull Street was actually the first street with a proper name in the Boston area.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

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

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

The world's largest collection of the world's largest objects is in one small Illinois town.

River pirates, murderous bandits, and serial killers used this Illinois cave as their debauched hideout.

This former small town was destroyed not by the motor oil it sprayed the ground with but by the toxic waste that was added.

A building so large that it has its own weather.