Self-guided Sightseeing Tour #5 in San Francisco, United States

The Auxiliary Water Supply System is a high pressure water supply network built for the city of San Francisco in response to the failure of the existing emergency water system during the 1906 earthquake. The majority of damages to the city from the earthquake were caused not by the seismic event itself, but from the fires that ensued, resulting in the destruction of 80% of the city's property value at the time. The improved water system was originally proposed by San Francisco Fire Department chief engineer Dennis T. Sullivan in 1903, with construction beginning in 1909 and finishing in 1913. The system is made up of a collection of water reservoirs, pump stations, cisterns, suction connections and fireboats. While the system can use both fresh or salt water, it is preferential to not use salt water, as it commonly causes galvanic corrosion in fire equipment.

Wikipedia: San Francisco Fire Department Auxiliary Water Supply System (EN)

Mount Olympus is a hill located on Upper Terrace in the Ashbury Heights neighborhood of San Francisco. It was once considered to mark the geographical center of the city, and was topped off by a statue given by Adolph Sutro, the Triumph of Light, now lost. Only the statue's pedestal remains, and the view from the top is obstructed by trees and condominiums.

Wikipedia: Mount Olympus (San Francisco) (EN)

Buena Vista Heights is a farm in the United Nations. Located in San Francisco County and California state, roughly west of the country, 3,900 km west of Washington, D.C. 173 meters above sea level is located in Buena Vista Heights. Buena Vista Heights is the part of San Miguel Hills that is the head of the country.

Wikipedia: Buena Vista Heights (CEB)

Corona Heights Park is a park in the Castro and Corona Heights neighborhoods of San Francisco, California, United States. It is situated immediately to the south of Buena Vista Park. Corona Heights is bounded in part by Flint Street on the east, Roosevelt Way to the north, and 16th Street to the south. The base of the hill is at approximately 300 feet (91 m), while the peak extends to 520 feet (160 m) above sea level.

Wikipedia: Corona Heights Park (EN)

The Pink Triangle Park is a triangle-shaped mini-park located in the Castro District of San Francisco, California. The park is less than 4,000 square feet (370 m2) and faces Market Street with 17th Street to its back. The park sits directly above the Castro Street Station of Muni Metro, across from Harvey Milk Plaza. It is the first permanent, free-standing memorial in America dedicated to the thousands of persecuted homosexuals in Nazi Germany during the Holocaust of World War II.

Wikipedia: Pink Triangle Park (EN), Website

Harvey Milk Plaza is a transit plaza at the Castro Muni Metro subway station commemorating Harvey Milk, in San Francisco's Castro District, in the U.S. state of California.

Wikipedia: Harvey Milk Plaza (EN), Website

The GLBT Historical Society maintains an extensive collection of archival materials, artifacts and graphic arts relating to the history of LGBT people in the United States, with a focus on the LGBT communities of San Francisco and Northern California.

Wikipedia: GLBT Historical Society (EN), Website, Facebook, Instagram, Youtube

Duboce Park (\du-'BŌS\) is a small urban park located between the Duboce Triangle and Lower Haight neighborhoods of San Francisco, California. The park is less than one block wide from north to south and two blocks wide from west to east. Its western boundary is Scott Street, and its eastern boundary is Steiner Street. The park is part of the Duboce Park Landmark District.

Wikipedia: Duboce Park (EN)

The San Francisco Mint is a branch of the United States Mint. Opened in 1854 to serve the gold mines of the California Gold Rush, in twenty years its operations exceeded the capacity of the first building. It moved into a new one in 1874, now known as the Old San Francisco Mint. In 1937 Mint operations moved into a third building, the current one, completed that year.

Wikipedia: San Francisco Mint (EN), Website, Heritage Website