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While you may not sail the great blue seas, you can explore the history they played in Philadelphia’s development at the Independence Seaport Museum. A museum dedicated to the maritime history of Philadelphia, the Delaware Valley and Pennsylvania, the Independence Seaport Museum is suitably located along Penn’s Landing, the historic site where William Penn first docked when he arrived in America.

Learn about the history of medicine at the Mütter Museum. This unique museum showcases a collection of attractions like medical oddities and artifacts, wax models, antique equipment and anatomical and pathological specimens. See the 200-year-old history of modern American medicine traced out before your very eyes, as well as current breakthroughs in the field.

Set aside some time to visit the oldest surviving botanical garden in the United States. Bartram’s Garden covers 46 acres in Fairmount Park, and is open to the public for free admission. Try taking a tour inside the historic garden area (the original 8-acre garden begun in 1728), the historic stone house, through the elaborate grove and the largest variety of North American plants in the world.

Explore the Morris Arboretum’s lush tree-lined paths and bright, colorful gardens. With more than 13,000 labeled plants representing over 2,500 different species, it is no surprise that the Morris Arboretum of the University of Pennsylvania is the official arboretum of the Commonwealth of Pennsylvania. See horticulture from North America, Europe and Asia all together in one outdoor venue.