This was once the largest four-sided clock in the world (yes, even bigger than Big Ben).

Three playfully immersive mini golf courses let you travel alongside your ball to the cup at this facility, which has been around since the 1950s.

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

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.

The tragic death of 19-year-old Mabel Tainter in 1886 led to the construction of this unique Victorian-era theater in the northern woods of Wisconsin.

This rooftop sign has been confusing Milwaukee-bound airline passengers for decades.

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

Paranormal activity on the great lakes.

Over thousands of years, this slot canyon was carved out of the bed of an ancient lake.