The shorter tour takes you to at least five central places: Marx’s birthplace and residence, the Jesuit college, and Casino, as well as the statue erected in 2018 which all lie on route. The actual duration will of course depend on where you begin and how much time you spend at each place.
The complete tour takes you in around 2.5 hours to twelve places. Alongside the key chapters from Marx’s life you will also be taken to the city museums. The actual duration will of course depend where you begin and how much time you spend at each place.