An imperial fortress city that incorporated cultural elements from the entire Mughal empire, only to be abandoned the year it was finished.

An ancient iron pillar in Delhi that seems to be rustproof.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

This African beach is home to thousands of rare mainland penguins that are known for their annoying voice.

Formerly known as the Malay Quarter, Bo Kaap is a colorfully-painted suburb located in the “Mother City” of South Africa.

Everything from a plane to your own two feet are needed to reach this jungle resort.

Named after the Goddess of Harvests, Annapurna is the deadliest member of the Eight-thousanders club.

Made by a man on a worldwide sanitation crusade.

A blooming house of worship for the masses.

A model of a dinosaur that was named for Andrew Carnegie stands outside the museum that also bears his name.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

The world's largest piece of copyrighted artwork.

The headquarters of one of the world’s longest-running humor magazines bears a noticeable resemblance to a head wearing a Prussian helmet.

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

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

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

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

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

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

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

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

The filming location of a shark attack in Steven Spielberg's famous shark movie.

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