@janbb beat me to it. I was also going to suggest the library. They often have more than just books. They sometimes have DVDs and CDs. Some libraries have musical instruments.
Push ups, dips, squats, sit ups, leg lifts, isometrics etc…
I know you are tall like me, but if you can do burpees in your place without tearing up the ceiling, you’ll be one formidable time traveler friend…