I remember going down to the construction site of the Ren Cen around 1974 and taking some photos. What was there previously, the Robin Hood Flour building?

I'm trying to remember the '70s cost of putting up the Ren Cen, something like $80M. What did GM pay for the Ren Cen in the '90s, about the same amount? If so, with inflation, that means the property did not appreciate.

I was last in the Ren Cen last autumn. The appearance is a vast improvement over the original Festung Amerika-look. I'm hoping GM, the Ren Cen, and downtown Detroit will prosper in the future. This from someone that lived downtown for 12 years from until 2001.