If you want to combine a beach holiday in Rimini with an educational one, it's worth taking a walking tour. It's easy to organise on your own, without the help of local guides.
In the historic centre you can see historic buildings and monuments from Roman times. A walking route around Rimini starts with the Bridge of Tiberio, dating back to 21 A.D. Familiarize yourself with this Roman monument and make your way to Piazza Tre Martiri. This was once the site of a Roman forum. Then visit the Domus del chirurgo, another historic site.
To get a better idea of the architecture, you can walk to the Church of Sant'Agostino, Castel Sismondo and the palazzo Gambalunga.
But the best way to experience the atmosphere of the city is to wander aimlessly through the ancient streets of Rimini.