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

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

The world's longest known cave system.

A rusted metal giant pays tribute to Birmingham’s industrial past.

This shrine to McDonalds' most iconic sandwich holds a 14-foot tall burger.

Pennsylvania's own Roswell-style UFO mystery.

Nothing says indulgence like a 1,500-pound chocolate castle.

This abandoned dream castle and its cemetery look out over the city that once inspired their creation.

There are more than 4 million bricks inside this unofficial Lego museum in a former middle school.

The inventor of a number of hybrid corn species is immortalized with a field of giant corn.

Visitors to this arboretum are greeted by three smiling giants crafted from sustainable materials.

The quiet resting place of a rock and roll legend.

Bananas are often left for the first monkey America ever recovered alive after being launched into space.

A propulsion engine testbed that paved the way for the Space Shuttle launch sits without recognition at this rocket center.

It may look like no more than a full-scale model, but every part of this full Space Shuttle stack had a working role in aviation history.

A 56-foot tall statue of the god of fire looks out over Birmingham, Alabama.

Once one of the largest producers of pig iron in the world.

The remains of an idyllic small town built for the film 'Big Fish' still stand around a rundown main street.

A bronze sculpture of a white dove commissioned by Pope Benedict XVI.

A six-foot pair of socks hangs from a drawer of the world's largest bureau.

The world's largest fire hydrant is supposedly tornado-proof.

Dozens of houses in the Adirondack Mountains are reminders of a literal "cottage industry" to cure people of a deadly disease.

The site of America's first commercial oil well essentially disappeared after the town went bust.

A quirky collection of outsider art made from automobile parts.