There's a stretch of Fifth Avenue between 82nd and 105th Street that calls itself Museum Mile, and the name undersells it. Nine museums, the Met first and largest among them, all backing onto Central Park — more art on one avenue than several countries can muster, and a three-kilometre walk that takes the best of it without trying to do all nine.
Start at the Met, because everything else is a footnote to it; sit on the steps, go in, and surrender to the scale rather than fighting it. Out the front, cross to the park side and walk the stone wall north past the reservoir, the silver sheet that gives the whole avenue its light. Then back to Fifth for the climb: the Neue Galerie and its Klimt, the Guggenheim and its spiral — take the lift up and walk down, the way Wright intended — the Cooper Hewitt in Carnegie's mansion, the Jewish Museum in the Warburg house.
You won't go into all of them. Pick two, look properly, and let the avenue do the rest. The 6 from 96th Street takes you home.

