Medical museum that houses most notably the taxidermied remains of Vladimir Demikhov's famous two-headed dog experiment.

3,000 market stands in five former Zeppelin hangars.

A stone marker and sculpture in the city of Riga stake a claim for the very first community Christmas tree.

A black cat protests the City Guild in Riga's Old Town.

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 whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

Op-art architecture designed for happiness.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

305 homemade stone stairs wind their way up the Hamilton escarpment.

The "Seinfeld" diner.

Yo, Adrian!

Priceless space junk on display in front of a local Dairy Queen.

A mysterious spot where the laws of gravity seem not to apply.

This shrine to McDonalds' most iconic sandwich holds a 14-foot tall burger.

Pennsylvania's own Roswell-style UFO mystery.

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

A take-out restaurant that only serves cuisine from countries with which the United States is in conflict.

One man's attempt to create an artistic wonder on a run-down block in Detroit.

Collection dedicated to brands, packaging and advertising.

Pop culture has helped to keep this iconic British building from being destroyed.

The anatomical-pathological collection of a man who changed surgery.