You can see the gigantic white head of a woman from miles around: Anna by Spanish artist Jaume Plensa sits at the highest point of this sculpture park on the island of Tjörn and has become an iconic landmark. Here, where sheep graze, the fields are also marked with stone circles and prehistoric graves that date from between 500 B.C. and 1000 A.D. In 2007 the outdoor art exhibition opened and the theme changes every summer, as do the featured artists, with some pieces that form part of the permanent collection. Walking through the layers of history (and sheep) to enjoy art among the juniper bushes and fields of heather is a one-of-a-kind experience.