An elliptical glass tower that is known as the world’s first two-sided building.

A humble air museum located in an original World War II aircraft factory.

How did the right arm of a 13th-century English bishop wind up in a Connecticut church?

The ruins of an abandoned 18th-century town that is slowly being reclaimed by the forest.

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

A portion of the old Pirates stadium over which a defining home run once flew still stands even after the rest of the stadium was torn down.

Sections of the iconic limestone columns have been left uncleaned as a reminder of the city's polluted past.

Once the most painted on object in the world, this short campus fence is well on its way to being so again.

Meet your friends, marry your true love, or tell your enemies to kiss your butt under this historic Pittsburgh timepiece.

The last street in Pittsburgh that's paved with wood.

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

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

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

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

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

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

One of the steepest streets in the United States makes an intriguing challenge for cyclists.

Fuel your honky-tonking with this venue's unbeatable “Recession Special.”

The alley connecting two of country music’s most historic venues has a rich history of its own.

This replica of the Greek structure is in the heart of Nashville.

An ode to Japanese artist Hokusai, with a bit of a comical twist.

This lighthouse was witness to the end of WWII hostilities and now collects creepy cairns.

Rumors of the occult haunt this upscale 1920s hotel.

You can spend the night as an honorary lighthouse keeper in this quaint, historic beacon.