On the east side of Mt. Desert Island (Acadia National Park) are a number of spectacular hikes. We like them because the payoff in scenic views is great relative to the small amount of effort required to get there.
Across the open, rocky tops of the hills, a number trails feature the Bates Cairn, a rather unique feature designed by pathmaker Waldron Bates in the late 1800s - early 1900s. In addition to helping to guide hikers along the trail, they also make for some excellent photo opportunities.