Well, my point is that you know longer have to guess what's within your walking area. The app LetsWalkTo lets you search for bars, restaurants, entertainment and some other key venues, by walking time. The picture above is a screenshot of what I saw when I pulled up the site to look for downtown Spokane locations. You can click on it to see if full size.
You could also use it when visiting cities you're not familiar with. For instance, when on vacation a while back, a hotel staff member directed myself and a friend to a "nearby" grocery store that was supposedly only "a mile away, at most." After 40 minutes of walking, we finally hailed a cab and the driver told us the store was at least three miles from our hotel. Live and learn, I guess.
Check out LetsWalkTo here.