Originally an English trading post on the Kennebec River, Augusta has since grown to be the capital of Maine, and is focused on preserving and celebrating the state?s history. Visit the magnificent Maine State House or Old Fort Western, the oldest surviving wooden fort in the United States. The city is also the home of the Pine Tree State Arboretum, a 224-acre park and botanic garden, with six miles of hiking, biking and cross-country skiing trails, open for free, all year round.