The oldest brick house in the state of Ohio.

An obsolete, vanishing traffic device warns Cincinnati drivers away from middle-of-the-road obstructions.

One of the few beardless depictions of Lincoln, George Grey Barnard's 1917 statue was denounced by many—including Lincoln's own son.

This collection of Japanese luck idols beckons visitors with over 2,000 waving paws.

A miniature world of concrete and stone in Springfield, Ohio.

Inside this wonderland of weird, visitors are treated to a collection ranging from skeletons to haunted artifacts.

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

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

This stuffed pigeon of war had the very serious name "John Silver" until he lost a leg in battle.

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

A headstone tells the sad story of a lost little boy and his pet dog.

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

This bridge uses an inverted bowstring truss and is believed to be the only of its kind in the United States.

The largest ancient burial mound in Ohio.

What is it about mushrooms that makes people wish they lived inside of them?

This humble star-gazing center touts itself as the "Birthplace of American Astronomy."

Historical structures and natural wonders await visitors to this preserve.

After a water tower painting was accused of being an ad, a simple fix was made that gave the city a motto.

These massive animal sculptures were constructed as part of a reality TV show challenge.

The site of Stockholm's last public execution.

Celebrating the Swedish ship used in the first Arctic expedition to navigate through the Northeast Passage.

Metal horses galloping through a London fountain provide a link to the city's past.

This hydraulic power system in London was, at one time, seen as a rival to electricity and the last of its kind to shut down.

It celebrates a very stinky task and salutes London's fatberg-vanquishing team.