Tiki luxury on Nob Hill.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

The only theatre in the world constructed specifically for sound movement.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A huge musical instrument played by the ocean.

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

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

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

The oldest working bell set in North America, the bells at Old North Church sat silent for their first four years in Massachusetts.

The remnants of a Gilded Age elegance preserved in the middle of a stark modern tower.