A massive bur oak tree believed to be some 500 years old is the centerpiece of this quiet urban greenspace.

A mini Wrigley Field for mini baseball players.

An exhibit of items from the mental institution where Mary Todd Lincoln lived after her son conspired to have her committed.

A collection of 11 million buttons illustrates the human toll of the Holocaust.

The carved remains of a 200-year-old oak tree memorialize the namesake of the iconic "Wizard of Oz" character.

This monolithic statue was erected in honor of Chief Black Hawk (even if it wasn't made to look like him).

A chance to follow in the footsteps of the word's most legendary animator.

This rare female version of the Muffler Man has its clothes removed each summer to signal the start of pool season.

This family driveway also serves as the highest point in Illinois.

People escaping slavery passed through the oldest house in Lombard, Illinois on their northbound journey to freedom.

The original vault that held the president's remains still stands, empty, not far from where he was finally buried.

This softly rounded mansion was built without corners not to avoid evil spirits, but to make them more comfortable.

The world's third-largest scale model of the planets.

One of the first historical sites of an alternative universe was installed in the town of Paris, Illinois—which is now home to an annual spelling bee of Kcymaerxthaereal words.

The first and only museum dedicated to stained glass and horology opened outside of Chicago in 2017.

The famous author's birthplace is preserved in a town that he once described as narrow-minded.

In the Shawnee National Forest, amazing rock formations peer through the treeline.

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

Even with only two residents and one building, this tiny Illinois town is famous for its burgers.

The mysterious white squirrels of this Illinois city are treated like sacred cows.

A notorious Route 66 eatery once frequented by Al Capone.

Taxidermy, Cigar Store Indians, A Model of a New York Tenement and Delicious Draft Root Beer.

The final resting place of the world's first nuclear reactor.

When you visit his grave, be sure to rub the Great Emancipator's nose for good luck.