Washington Park is one of the oldest, best loved and most widely used parks in Portland. It features more than 400 acres of trees, gardens, attractions and playgrounds and 15 miles of trails. Washington Park is home to the Oregon Zoo, the Vietnam Veteran’s Memorial, the International Rose Test Garden, the Portland Japanese Garden, the Portland Children’s Museum, the World Forestry Center and the Hoyt Arboretum. http://explorewashingtonpark.org/