—— other thoughts .... if you are staying in a hotel in Frankfurt, ask the hotel concierge or. ..... Use GPS to identify Museums along the street (in-question) (Schaumainkal) and email them thru there ‘contact us’ feature.

I recall that there was off-street parking near the museums.

Depends where you come from. There is a lot of poosibilities for public transportation.

The path along the Frankfurt museums is free of charge. There are plenty of meseums agong the river. Each has its own price there. A spescial occasion to get into several for little costs is during the muuseum summer festival. There you get one general ticket and can enter any museum along the river for free. Outside there is party atmosphere and you can party.