The underground tunnels are mostly used by government and state employees. The tunnels go under streets, sidewalks and buildings mostly in and around the capitol in downtown Boise. Most of the original paintings are dated from 1986, 1987, and 1988. The original art has been hiding from the public in these underground tunnels for 35 years.
The Old Idaho Penitentiary is well known and often named the most haunted spot in the gem state. After the second riots broke out and a massively destructive fire in the kitchen and dining area in 1973 the prison closed after housing some of the most dangerous criminals in the world for over 100 years. See the ins and outs of this historic, iconic and haunted piece of Idaho.