Mont Faron offers incredible views combined with deep history. Take the cable car to the top and explore the various forts and towers before trekking through the nature. There's also a zoo located at the summit. If you decide to drive up, just know that the road is one of the most challenging stages of the Tour Mediterranean cycling race.
Musee Memorial du Debarquement, at the top of Mont Faron, commemorates the Allied invasion of the Provence coast. This military museum is filled with maps, models, photography, uniforms, equipment and anything else to do with military might. You can buy a combined ticket with the cable car.