Letterman Digital Arts Center

The Letterman Army Hospital, established around 1898 and redesignated as the Letterman Army Medical Center (LAMC) in 1969, was a US Army facility at the Presidio of San Francisco in San Francisco, California, US. It was decommissioned in 1994. Some of the original 1898 buildings still exist and now house the Thoreau Center for Sustainability. The Letterman Army Medical Center built in the 1960s era was demolished to make way for Letterman Digital Arts Center.

Let's Encrypt is a non-profit certificate authority run by Internet Security Research Group (ISRG) that provides X.509 certificates for Transport Layer Security (TLS) encryption at no charge. It is the world's largest certificate authority, used by more than 265 million websites, with the goal of all websites being secure and using HTTPS. The Internet Security Research Group (ISRG), the provider of the service, is a public benefit organization. Major sponsors include the Electronic Frontier Foundation (EFF), the Mozilla Foundation, OVH, Cisco Systems, Facebook, Google Chrome, Internet Society, AWS, NGINX, and Bill and Melinda Gates Foundation. Other partners include the certificate authority IdenTrust, the University of Michigan (U-M), and the Linux Foundation.

Yoda Fountain is a fountain with a bronze statue of Yoda, installed in San Francisco, California, United States.

Camp Merriam, California was a U.S. military camp for American troops destined for the Philippines during the Spanish–American War. Located at the San Francisco Presidio, the camp, named after Major General Henry C. Merriam, the Commanding General of the Department of the Pacific. Camp Merriam was located on the hills just north of the Lombard Street entrance to the Presidio of San Francisco. The camp was established in 1898 to quarter and train volunteer soldiers from California, Iowa, Kansas, and South Dakota for service during the Spanish-American War.

The Palace of Fine Arts is a monumental structure located in the Marina District of San Francisco, California, originally constructed for the 1915 Panama–Pacific International Exposition to exhibit works of art. Completely rebuilt from 1964 to 1974, it is the only structure from the exposition that survives on site.The most prominent building of the complex, a 162-foot-high (49-meter) open rotunda, is enclosed by a lagoon on one side and adjoins a large, curved exhibition center on the other side, separated from the lagoon by colonnades. As of 2019, the exhibition center (one of San Francisco's largest single-story buildings) is used as a venue for events such as weddings or trade fairs.Conceived to evoke a decaying ruin of ancient Rome, the Palace of Fine Arts became one of San Francisco's most recognizable landmarks. Early 2009 marked the completion of a renovation of the lagoons and walkways and a seismic retrofit.

READ (Rural Education and Development) Global is a non-profit organization operating in rural South Asia and headquartered in San Francisco, California. Founded on the belief that improved access to educational resources creates lasting social change in developing communities, READ partners with rural villages to build Community Library and Resource Centers (READ Centers). READ Centers offer a variety of programs – from literacy and women's empowerment to information communications technology (ICT) and livelihood skills training. READ currently works with communities in rural Bhutan, India and Nepal. As of August 2013 there were over 69 READ Centers in India, Bhutan, and Nepal, and over two million individuals had access to these centers.

Established in 1917, the Presidio Fire Department provides primary emergency response to the Presidio of San Francisco. During the 1940s, '50s and '60s the Presidio's Firehouse served as the headquarters station to a much larger department consisting of many Stations located at the various forts around San Francisco such as: Fort Baker, Fort Barry, Fort Funston, Fort Mason, Fort Winfield-Scott, Fort Cronkhite, Chrisy Field, and Angel Island along with fire prevention duties and air show fire protection at Hamilton Air Force Base after its closure and prior to its transfer to the City of Novato. Although most of the firehouses have long since been demolished, some still stand such as those located at the Presidio of San Francisco's Main Post, Fort Cronkhite, Fort Mason and Angel Island. The National Park Service maintains the daily log books dating back to the 1940s from several of the department's stations in the Park Archives of the Golden Gate National Recreation Area and they are available to the public for viewing. Over the years the Presidio Fire Department was reduced and left with two fire stations. Fire Station 1 was located in the Presidio of San Francisco's Main Post and Fire Station 2 was located in the Marin Headlands at Fort Cronkhite. In 1994, as a result of the Presidio of San Francisco's closure under the Base Realignment and Closure act the Presidio Fire Department and staff was transferred from the Department of the Army to the National Park Service and became the only full-time fire department within the National Park Service under the Golden Gate National Recreation Area, Division of Visitor Protection. However, as indicated by report #RECD-00-154 issued by the Government Accountability Office in 2000; the National Park Service as a whole was unable to effectively operate its various fire protection programs throughout the country. The GGNRA was no exception to this, and after years of struggling attempting to operate the Presidio Fire Department, the GGNRA began exploring options to rid themselves of the management burden of running a full-time fire Department.

Wood Line is a public sculpture in the Presidio of San Francisco in San Francisco, California. Made by Andy Goldsworthy, it is one of the most photographed areas of the park.

The Tower of Jewels was the central building at the Panama–Pacific International Exposition, the 1915 world's fair held in San Francisco, California.

Crissy Marsh is a wetland area in San Francisco, California, United States. Crissy Marsh has brackish waters, making an ideal habitat for many bird species along the Pacific Flyway. Here, freshwater runoff meets the salt water of the bay. It is 130-acres and located on the northern end of the San Francisco Peninsula. This salt marsh was largely destroyed to build Crissy Field, an airfield used during World War I and World War II. It has since been restored, with the airfield being removed. It now hosts abundant and recovering wildlife on the northern San Francisco coast.

El Polín Spring is a natural spring in San Francisco, California located in the Presidio. It is the source of the central tributary of El Polín Creek (also called Tennessee Hollow Creek). The spring was used by the Ohlone people, the Spanish military, and the U.S. Army as a freshwater source. Much of the stream was channelized or placed in underground culverts, and many riparian areas were used for landfill. Beginning in the 2000s, the Presidio Trust has worked to rehabilitate El Polín spring and daylight sections of the creek downstream. In 2005, 77,000 tons of landfill were removed from Thompson Reach, a downstream section, and native riparian species were planted. In 2011, El Polín was restored, with new trails, native plants, and a picnic area installed.

The Walt Disney Family Museum (WDFM) is an American museum that features the life and legacy of Walt Disney. The museum is located in The Presidio of San Francisco, part of the Golden Gate National Recreation Area in San Francisco. The museum retrofitted and expanded three existing historic buildings on the Presidio’s Main Post. The principal building, at 104 Montgomery Street, faces the Parade Ground, and opened on October 1, 2009. The Walt Disney Family Museum is a 501(c)3 non-profit organization that was formally owned, operated and funded by the Walt Disney Family Foundation, a non-profit organization established by Disney's heirs including Diane Disney Miller, Disney's daughter and founder of the museum. It is not formally associated with The Walt Disney Company, the media and entertainment enterprise.