Tour one of Idaho's "darkest" places on a hot summer day. Join us at the Old Idaho Penitentiary on Monday, August 21st for 2-for-1 adult admission in honor of the 2017 Solar Eclipse. The first 100 guests through the door will each receive a free pair of eclipse glasses! Hours are 10 to 5 with last admission at 4:15pm. Regular admission rates apply outside of the 2 for 1 (Adults $6, Seniors, $4, Kids $3).