Iberian Peninsula | Wirral Peninsula | Cape York Peninsula | Mornington Peninsula | Peninsula Campaign | Malay Peninsula | Arabian Peninsula | peninsula | Korean Peninsula | Niagara Peninsula | Varna Peninsula | Antarctic Peninsula | Two Door Cinema Club | Olympic Peninsula | Virginia Peninsula | Kamchatka Peninsula | Kenai Peninsula | Door County, Wisconsin | Chukchi Peninsula | Sinai Peninsula | Kola Peninsula | Iberian peninsula | Gaspé Peninsula | Eyre Peninsula | Banks Peninsula | Knockin' on Heaven's Door | Baja California peninsula | Hel Peninsula | Delmarva Peninsula | Behind the Green Door |
Washington Island is the largest in a chain of islands extending across Lake Michigan between the Door Peninsula in Wisconsin and the Garden Peninsula in Delta County, Michigan.