1. Vermilion Cliffs, Arizona Photo: Richard Barnes Against the soaring backdrop of Arizona’s Vermilion Cliffs, the 1929 Navajo Bridge, now used for foot traffic, crosses the Colorado River beside its 1995 counterpart.

    Vermilion Cliffs, Arizona

    Photo: Richard Barnes

    Against the soaring backdrop of Arizona’s Vermilion Cliffs, the 1929 Navajo Bridge, now used for foot traffic, crosses the Colorado River beside its 1995 counterpart.