By day this New Orleans square is for pedestrians, but by night it is a kingdom of kittens.

A collection of oddities including Dr. Kevorkian's suicide device, the Thanatron.

The only rotating bar in New Orleans has been slowly spinning since 1949.

Formerly known as National D-Day Museum, this collection commemorates the battles of Normandy and WWII.

Narrowest house in Boston.

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

This popular Boston haunt is reminiscent of a time gone by, when slow cafes and sweet-smelling smoke wafting from patios was the norm.

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 mysterious stone embedded at the base of a historic Boston building.

This historic patch of real estate offers a glimpse of colonial Boston.

Millions of numbers carved in glass represent the tattoos forced upon victims.

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

These whimsical works of art tell the story of the city's past and present.

A men’s restroom became a sandwich shop.

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

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

Tragedy on Little Brewster Island memorialized.

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

This historic Boston building has gone from personal estate to porn theater and back again.

American revolutionaries and British soldiers alike are buried here in the fourth-ever cemetery in Boston.

A more than 260-year-old crypt built on Boston's oldest English burial ground.

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

The site where Charles Dickens gave his first public reading of "A Christmas Carol" in the US.

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