It's free. Just get a map or use Google maps and walk around. It's amazing this place exists within the city.
Self-guided tour is free (need to pay for parking) But if you are referring to Private Group Tour Days: Tuesday – Friday Times: 10:00 – 11:00 am or 1:00 – 2:00 pm Schedule: Private Group Tours are scheduled for one hour Fee: $7 per person Payment: Payment in full is required in advance before your reservation can be confirmed Minimums & Maximums: Children’s Tours – min 5 kids, max 15; min 1 adult, max 10 Adult Tours – min 5, max 25
Free
There is a (very low) parking charge here, but everything else was free.
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