In September 2017, I rented a car in Turku to visit southwest Finland's World Heritage Sites. Early on a Tuesday morning, I found myself traipsing through a moss-covered forest floor and over granite boulders to locate some of the nearly 40 burial cairns, some of which date back more than three millennia, that make up the Sammallahdenmäki World Heritage Site. Needless to say, a Bronze Age burial ground is not as appealing as many World Heritage Sites, especially on a cold weekday, so I had the ancient forest to myself.