My friend and I are meeting in Pittsburgh for a reunion. We are from Chicago and New York...both great walking cities. Is Pittsburgh a walking city? Is there a hotel (or an area) where we could stay and walk to a number of tourist sights? We are particularly interested in museums. Is it a city where you can safely walk a half a mile or so to a restaurant and back to the hotel safely? We know nothing about the city (have read some and have a few ideas of things to see....Carnegie Museum of Art, Andy Warhol Museum, Heinz Historical Center...maybe a drive out to Falling Water). Any suggestions would be welcome.