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

This nearly 200-year-old restaurant's history includes an exiled French prince, JFK, and a very hungry Daniel Webster.

Millions of numbers carved in glass represent the tattoos forced upon victims.

This massive tea kettle was once a promotional stunt for the Oriental Teashop.

This airport currywurst stand is made out of retro airplane parts.

Go surfing on this urban wave, "hacked" by local surfers.

The telescope that discovered Neptune.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

Museum dedicated to the art of cutting and polishing stones.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

A historic beacon built in the aftermath of the worst maritime disaster on the Great Lakes.

Half-sized replica of the Leaning Tower of Pisa built to honor Galileo.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

Rifle through images of skyscrapers, Worlds Fairs, and more in the largest public postcard repository in America.

Chicago's Navy Pier on Lake Michigan was a training hub for aircraft carrier pilots during WWII.

A display of magnificent stained glass windows is the first exhibit of its kind.

This awkward aquarium sculpture is one of the strangest statues in Chicago.

To find the "unicorns of the deep" you've got to go downstairs.

At Chicago's revered Field Museum, visitors are invited to learn about and literally explore DNA.

Years of archaeology, just chillin' by the water cooler.

A goddess-topped water fountain in Chicago was created thanks to the dreams of a thirsty newsboy.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

A spectacular remnant of an Adler and Sullivan masterpiece that was destroyed in 1972.