Flying in about a month to Madrid with my family :)
Usually when I'm abroad I get the unlimited public transport weekly ticket and use it a lot. From researching a bit online and viewing the map, it seems that almost all of the places we're planning to visit so far (Restaurants, Puerta del Sol, Plaza de España, San Miguel, etc.) are only 10-15 minutes walk away from our hotel (located next to Primark in Gran Via).
Will public transportation even be necessary for us in Madrid? or is it better to walk?
Are all of the interesting places actually that close to the city center? Or perhaps I'm missing out on some...