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

This restaurant proudly displays bread signed by the 39th president.

But did the famous feminist and abolitionist ever really say those iconic four words?

Rows of 19th-century brick ovens used to process coal into coke form the center of a wooded park.

Solving a 60-year mystery finally gave a name to the young woman known only by the color of her clothes.

An unassuming 13-acre park is home to over 12,000 roses.

A throwback train ride transports passengers through one of the lesser-known national parks in the country.

A retro walk through the history of the tube.

The largest earthwork effigy in the world.

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

This massive airship factory is so large that it has its own indoor weather.

Where beautiful signs live on forever.

All that remains of a gigantic earth-moving machine.

An unusual, super-sized grocery adventure awaits in an Ohio suburb.

The final resting place of the most famous sharpshooter.

A slab of sandstone covered with mysterious 1,000-year-old rock carvings from a vanished North American culture.

The only remnant of a small mining town is an abandoned railroad tunnel that is steeped in ghostly lore.

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

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

Rare recess caves fill this unbelievably beautiful Ohio park.

One of the last few period-correct, hand-operated canal locks in the country.

A favorite of Amelia Earhart, ranking among those rare bridges that can be crossed without changing sides of the river.

It took more than 20 years and a sharp eye for one man to assemble this quirky collection.

In this relatively flat state the highest point is an honored place.