More info about travel to Æro: https://www.ricksteves.com/europe/denmark/aero The best way to explore Ærø, Denmark’s charming 22-mile island, is by bicycle. Ærø’s 7,000 residents enjoy local produce sold roadside on the honor system and save on heating costs using one of the world’s largest solar power plants. The island also features prehistoric burial sites, one of which holds a full Viking …