The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

A haunting tribute to pioneering photographer Clover Adams.

Largest Roman Catholic church in North America.

This lonely waterfront memorial to the men of the Titanic was erected by the "Women of America."

In 2010, Nicolas Cage purchased two plots in this cemetery using one to construct this strange pyramid mausoleum.

Old ships and machinery fill a historic harbor in the city that's home to Europe's largest port.

Museum dedicated to the UK's first charity for abandoned children, with keepsakes of the mothers who left them behind.

A flourishing garden with pigs, donkeys, goats, rabbits, guinea pigs, chickens, ducks, and sheep.

The Columbia Road Flower Market is now open every Sunday, rain or shine.

Scattered throughout London are ancient remnants of the city's former bounding wall.

A historic house left in "dramatic still life."

Hear the quietest sound from across the dome.

The quaint little store that is said to have inspired a famous Dickens novel was only given its name after the book was released.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

A kaleidoscopic warehouse-maze of handmade neon signs.

The commemorative stone column conceals a secret laboratory.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

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

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

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

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

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

On a former island, this old fortification once used to protect the Boston Area and started Edgar Allan Poe in his military career.