An abandoned town is hidden in Great Smoky Mountains National Park.

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

This magnificent Cincinnati graveyard is also a popular public park.

Where beautiful signs live on forever.

The world-record holder for the longest bridge stretching continuously over water.

An enormous goose sits atop this nest-shaped home.

This winding road of 318 curves is a must-visit for (careful) motorcycle and sports car enthusiasts.

In one of America’s oldest mountain ranges, a long-awaited section of a scenic highway is now open to the public.

A lush green oasis in the middle of Chicago.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

Former bath house turns gastropub.

A European-style bath house in Chicago.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

This memorial plaque remembers a strangely shallow maritime disaster known as "Chicago's Titanic."

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

This surprising gem is a world-class archeological museum hidden at the University of Chicago.

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

A cavernous three-story, 43,800-square-foot basement that was forgotten about for 60 years.

A mine fire has been burning under the deserted town since 1962, but this church is still going strong.

This elaborate towering structure was once famed for its revolutionary height.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

Jesus' footprints and the first catacombs in the world.

Exact replica of the ancient monument, but much, much lighter.