A sinister pyramid in the Frari contains the heart of the famous neoclassical sculptor.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

As can be expected from a centuries old church built in a canal city, the undercroft of this house of worship is beautifully flooded.

A micronation on an islet along the coast of a Portuguese island.

Portugal’s highest lighthouse has one of the most impressive focal planes in the world.

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

One of the indelible moments of the American Revolution took place at this location.

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

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

The massive machine creates cracking displays of indoor lightning.

This massive tea kettle was once a promotional stunt for the Oriental Teashop.

The former locus of Boston's high culture has been shuttered and buried for over 70 years.

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

Narrowest house in Boston.

Beautiful steampunk ghosts of early Massachusetts.

19th-century operating theatre in which the use of ether was first demonstrated - plus, a skeleton and a mummy!

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

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

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

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

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

A wunderkammer of exoticism immortalized by Tom Waits.

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