The house where John Wilkes Booth conspired with his co-conspirators.

A celebrity from the late Cretaceous period.

Rumor has it the uncarved lump behind the three famous suffragists is reserved for the first woman president.

Perhaps the most scandalous statue of America's first president.

Housing the National Women's Party since 1929, this historic house is now a monument to the fight for gender equality.

The most accurate timepiece in the world.

A traveling postal dog covered 48 states and more than 140,000 miles, and he lives on as taxidermy, patched up with a rabbit's foot and a pig's ear.

The "lovely red Vega" of the legendary record-settling pilot.

Inside houses a vast collection of military aircraft and missiles spanning the ages.

The only depiction of Abraham Lincoln holding a weapon, and the names of all 9,000 Cuyahoga veterans of the Civil War.

The world's first aircraft factory has been hiding inside an automobile plant for almost 80 years.

You can walk through the first Boeing Air Force One, which famously carried JFK's casket from Dallas back to D.C.

A real flying saucer, contracted by the U.S. Air Force.

One of just a few cities in the world to base their center of government on an island. Others: Paris and Osaka.

While there are no actual snakes in the history of this crooked road, there may be a number of dead horses.

The world’s largest truck stop includes a barber shop, chiropractor, and a huge museum with antique trucks.

This cheerfully-named branch of the Chicago River is the fetid result of years of blood, entrails, and meatpacking waste.

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

While he no longer has an eatery to give him context, this off-brand Paul Bunyan still holds his giant hot dog with pride.

Man-made geyser that rises to the exact height of the Gateway Arch.

The hometown of Popeye's creator is littered with a growing collection of granite cartoon characters.

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

It was originally part of a "terrible lizards" collection at the 1964 New York World’s Fair.

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