This place is very interesting. Can you get inside or no? Do you have to paid or something or you just can't?

you have to pay the entrance fee, but they won't let you into certain areas

Good time do Halloween your done by guards

The tours are very interesting. Well worth it.

You have to take a tour.

Paid tours. You only have access to 1 full building and half of 2 buildings. Hoping they renovate more

They have paid tours you can do. www.jolietprison.org