Overlooking the San Francisco Bay, the Presidio is one of San Francisco's best kept and oldest parks. The Presidio Trust, along with the National Park Service, seeks to preserve the heritage and architecture of the area while providing both locals and tourists with a splendid recreational spot. Visitors to the park can admire several restored military buildings and embark on explorations of the expansive area. Attractions such as the "Spire," attributed to artist Andy Goldsworthy, and other unique additions have even helped the park be featured in numerous TV shows and movies. The Presidio is an excellent destination to visit with the entire family, and the park also offers tours to help acquaint you with all it has to offer. It is open year-round, and entry is free.