I think you would appreciate Munich's science museum (https://www.deutsches-museum.de/en/museum-island/visit). They've done a solid job of balancing accessibility and hard science, and updating many of the old models and displays from the last century, including the wing devoted to bridge building.

I spent a good 45 minutes drinking in the exhibits around hydropower generation. And who doesn't appreciate a cutaway section of one of the first Airbus jetliners? https://www.deutsches-museum.de/en/museum-island/exhibitions...