History runs back to the time of the Druids in North Wales, a traditional region where Welsh is still commonly spoken and where the pristine natural landscape seems to be steeped in mysticism. Outdoor adventures are plenty in Snowdonia National Park, home to the towering peak of the same name as well as miles of beaches, wetlands, and lakes. UNESCO has named a collection of four Welsh castles a World Heritage Site: Harlech, Beaumaris, Conwy, and Caernarfon. The imposing medieval structures were spared by invading forces and remain to delight modern visitors. Though the castles are devoid of royals today, a visit to the Isle of Anglesey offers a glimpse of where the Duke and Duchess of Cornwall – Will and Kate – have lived since their marriage.