These abandoned grain silos and tunnels are an urban exploration dream.

This historic hotel invented the chocolate brownie.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

The subtle science of a master molecular gastronomist.

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

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

Hidden in magnificent rolling countryside, see what may be the largest modern stone circle in the world at Wisconsin's very own "Stonehenge”

One of the largest aviation events in the world brings half a million aircraft enthusiasts to Wisconsin each year.

Before he was America’s most famous preservationist, John Muir was an ingenious mechanical inventor.

One of the last surviving C-97s sits in a field in front of a Wisconsin inn.

The birthplace of a titan of American cinema.

Tirelessly maintained by a Wisconsin man named JFK.

According to the legend, this strikingly beautiful hill has miraculous healing powers.

Giant six-pack could provide one person a six-pack a day for 3,351 years.

Home to the world's largest refracting telescope and the birthplace of modern astrophysics.

The bugs crawling down the front of this office building are almost as big as a '68 VW Beetle.

Paranormal activity on the great lakes.

One of Frank Lloyd Wright's final works was this UFO church.

A giant, Gilded Age mansion that once belonged to the beer baron of Milwaukee.

A metal ring in the middle of the road marks the exact spot where the Soviet satellite crash-landed in 1962.

This striking art museum holds an amazing series of curiosity cabinets.

A remote hill on a stretch of country road where the laws of physics are defied... or so it seems.

Six tiny houses built for working class people form the largest intentional cluster of Wright homes anywhere.

This pebble beach is so beautiful that taking its rocks is against the law.