Gorgeous view of nighttime Minneapolis skyline. Interesting history lesson.
90 minutes really boils down to 30 minutes of registering/slideshow/getting your ghost equipment. 10 minute historical walk across the street. THEN we had a chance to walk through a building and down stairs for about 35 minutes. Neat info on the ghost hunting equipment. No ghost activity that evening, but I believe that stuff has happened before. Would recommend for 1/2 the price.