Whoa!
I don’t think I could stand very long, let alone walk slowly. If I walk fast, I don’t have much of a problem, but walking slowly through a museum would put me in bed for a week.
I’d have to do my sightseeing on wheels. :o[
I thought of that, believe me!
The good news is that we were at the JW next door to the White House (we saw Marine One land and let the President out -- well, we didn't see the President since they blocked the street off) and it is close to the major sights.