Located in the thermoelectric factory that once powered the entire city, this Portuguese museum is shockingly fascinating.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

The largest clock face in the United States is twice the size of Big Ben and infinitely more ad-sponsored.

The last remnants of Fort Pitt also hold the distinction of being the oldest structure west of the Allegheny Mountains.

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

This permanent exhibition celebrates the finest of our heartless automatons both real and fictional.

This plaque marks a place where one of Hollywood’s most famous dancers got his start.

These disused steel furnaces are now haunting ruins that may one day be a national park.

Japanese gardens dedicated to the Japanese farmer that refused to throw in the trowel.

The behemoth beasts engaged in an epic battle is the second-tallest statue in the contiguous United States.

The oldest operating pharmacy in the world features 800-year-old recipes.

Architectureal fantasy quarter of Rome.

Architectural monsters are devouring this palace's every door and window.

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.

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

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

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

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

This abandoned subway station can still be seen on regular commuter trips.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

Elevated freight railway turned wildly successful urban park.

The U.S. Supreme Court's secret Cold War relocation facility in the mountains of North Carolina.