Then I’d go down the E4, stopping at a moose park in Småland, stay overnight at my aunts place, keep going south to Blekinge, visit Marinemuseum (the National Maritime museum of Sweden) in Karlskrona, then continue on to Malmö, drive to Denmark, visit Legoland, continue to Germany, and Hamburg, for Miniature Wunderland, then find out where the closed steel works that you can explore are, go there, then find the park with old bucket wheel excavators, check those out, keep going south to Sinsheim and Speyer and checkout the cool technology museums, drive over to France and start heading back home.
I live in the northern suburbs of Stockholm Sweden, so a road trip will probably mean going south.
So lets start going west!
I would hit up Gripsholm castle to say hi to Leo the Lion: https://www.kungligaslotten.se/artiklar-film-360/gripsholms-slott/2018-07-22-legenden-leo.html
Then I’d go down the E4, stopping at a moose park in Småland, stay overnight at my aunts place, keep going south to Blekinge, visit Marinemuseum (the National Maritime museum of Sweden) in Karlskrona, then continue on to Malmö, drive to Denmark, visit Legoland, continue to Germany, and Hamburg, for Miniature Wunderland, then find out where the closed steel works that you can explore are, go there, then find the park with old bucket wheel excavators, check those out, keep going south to Sinsheim and Speyer and checkout the cool technology museums, drive over to France and start heading back home.