The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

A labyrinth hides in plain sight at each of the city's 270 Tube stations.

Originally built for London’s cab drivers, this bright green hut now serves anyone a hot drink or meal.

Once designed as the entrance to Buckingham Palace, this structure was later relocated and stands as a victory arch.

Though it may look like it’s missing its outer shell, this skeletal cast-iron tower was built to withstand wind and waves.

The world's largest private aircraft collection.

See massive fossils that are over 200 million years old in northeastern Arizona.

A historic hydroelectric power plant serves as the unusual backdrop for a public park.

Once a year, at exactly 11:11 a.m., this monument comes to life.

A museum and tribute to a brave profession.

A towering bronze statue memorializes the founding father of postwar American conservatism.

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

There aren't too many operational funiculars around, but Pittsburgh has two!

A retrofuturistic art installation in the Pittsburgh Airport.

After a water tower painting was accused of being an ad, a simple fix was made that gave the city a motto.

Former bath house turns gastropub.

"No writer ever gave more to a city and got back less.”

Home to a protest movement, a bombing, and a dramatic change in labor history.

A 400-foot-tall tall map of Chicago makes this once-ignored building stand out.

Odd, decrepit fountain honors Chicago author who had mixed feelings about his hometown.

The beloved home to all publications indie, erotic, and punky.

Location of the Real World's disastrous, and protested, eleventh season.

A Bibliophile's Dream.

Where Cusack's record store from the film "High Fidelity" was located.