Falling Water and Andy Warhol museum

Details will be announced soon.
This is a 2-day trip and will take approximately 6 hours to get there.
We will stay in Pittsburgh and will also visit the Andy Warhol Museum.
If you are interested, please let me know, so I can consider you and plan.
There is no obligation yet.
I would like to have an estimate of the number of people attending.
I will try to keep costs low.