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

These pretty kitties killed and ate as many as 135 railway workers.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

This historic Illinois "Muffler Man" has been converted from axe-touting lumberjack to rocket-wielding space ace.

A jewel of early electric boosterism once again charms Connecticut's historic "Hat City."

After decades of neglect, a brutalist icon is getting new life as an eco-friendly hotel.

Journey inside the bowels of this sperm whale sculpture.

American artist J. Alden Weir purchased this 60-acre estate for $10 and a painting.

This sculpture commemorates the first instance of an American president pardoning a turkey.

Amazing views of Long Island Sound can be seen from this mountaintop tower.

Memorial to one of the most fatal fires in both circus and U.S. history.

Public outcry led to this bridge's unique character which celebrates a giant frog battle and also sewing.

The cave where two British judges hid in exile after sentencing the king to death.

Panoramic views of the city of New Haven and the Long Island Sound, with a side of history.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

The world's largest public collection of PEZ memorabilia.

With some 500,000 books across five buildings, this bookstore is a reader's paradise.

Quirky castle designed by the American actor best known for portraying Sherlock Holmes on stage.

While many places make the claim, the Library of Congress says this restaurant is the birthplace of the hamburger.

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

This small-town Connecticut restaurant gives each diner a free book from its vast library.

Ironically this massive termite is the mascot for a company that is acclaimed for killing his kind.

A giant green dragon crawls down from the roof of the Providence Children's Museum.

Rhode Island's tallest building bears a resemblance to the "Daily Planet" building and has been empty for more than five years.