Located along the southern boundary of Philadelphia, Franklin Delano Roosevelt Park has been a treasured landmark in the city for nearly a century. Designed in the early 1900s by the prestigious Olmsted Brothers architectural firm, the park was originally named League Island Park as an homage to the marshy wetlands from which it was constructed. Diverse in natural resources, the park's nearly 350 acres of land contain a variety of lakes, ponds, and lagoons in addition to the coastal plain environment. The park contains a variety of important wildlife, and has been designated an Important Bird Area by the Audobon Society. Franklin Delano Roosevelt Park is also an important historic location for the city of Philadelphia. Bellaire Manor and the Bake House located on park property were built in the late 1700s and remain wonderfully preserved. Additionally, the park played host to the city's elaborate Sesquicentennial Celebration in 1926. Today, the boat house, gazebo, and American Swedish Historical Museum remain in remembrance of this celebration. In addition to its naturalist resources, Franklin Delano Roosevelt Park offers a wide variety of recreational opportunities. Visitors can fish the lakes, race model boats, and bike or stroll along the paved perimeter. There are soccer fields, baseball fields, and tennis courts, as well as the Franklin Delano Roosevelt Golf Course and the FDR Skate Park. This skate park was partially designed by skateboarders, and contains challenging components renowned withing the skateboarding community.