Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

A 19th-century architectural wonder designed by the "father of the skyscraper."

The seat of Buffalo government is a gorgeous Art Deco palace.

One man’s hobby is another man’s world of metal wonders.

A dedication plaque on this Boston tunnel is a microcosm of a massive, controversy-laden construction project.

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

When you visit his grave, be sure to rub the Great Emancipator's nose for good luck.

This statue intended for children to enjoy became a minor political spat.

What was once a true peninsula has now been filled in, causing the water to recede and leaving many streetside "waterfronts" and landlocked "islands."

A centuries-old church stands as a testament to Boston's "father of architecture."

The world's largest piece of copyrighted artwork.

This headstone marks the grave of an 11-year-old boy killed during clashes in the streets over the boycotting of British goods.

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

Dedicated to one of the darkest moments in Irish history, this memorial has faced its fair share of backlash.

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

The former site of an all-but-forgotten colonial landmark is now remembered by an often overlooked bas relief.

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

This area was once known for being a lawless haven for rough-and-tumble sailors, earning the maritime-themed nickname "the black sea."

One woman’s obsession gave birth to this lovely oddity at the Boston Public Library.

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

Yale University's home for rare works, including the mysterious Voynich Manuscript.

The US Navy's only submarine museum is also home to the world's first nuclear submarine.

The headquarters in Salem doubles as an occult art gallery.

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."