I am visiting Washington dc at the end of august - is it a fairly accessible city? -
I am staying near Farragut north metro a couple of days and McPherson square metro for a couple of days ( don't ask why I have divided my accommodation - complicated!!)
I wondered whether I could walk to Smithsonian museums/ capitol etc all the sights or whether I should get a smart metro card. If I should get a metro card what is the best card to get for 2 days and 5 days ?