A gigantic map of all the cool plaques in the world. A project of 99% Invisible.

Semiconductor planar process and integrated circuit, 1959

IEEE Milestone in Electrical Engineering and Computing   Semiconductor planar process and integrated circuit, 1959   The 1959 invention of the Planar Process by Jean A. Hoerni and the integrated...

IEEE Milestone in Electrical Engineering and Computing   Semiconductor planar process and integrated circuit, 1959   The 1959 invention of the Planar Process by Jean A. Hoerni and the integrated...

    William Lawson Plaza

    William Lawson Plaza   Dedicated to the spirit of community involvement as exemplified by Bill Lawson's more than 50 years of public service including Menlo Park Councilmember, 1952 - 1972,, and...

    William Lawson Plaza   Dedicated to the spirit of community involvement as exemplified by Bill Lawson's more than 50 years of public service including Menlo Park Councilmember, 1952 - 1972,, and...

      Remembering Henry Alton Hyde (1871 - 1949)

      Remembering Henry Alton Hyde (1871 - 1949) Pioneer horticulturist and nurseryman   For 59 years in the Monterey Bay area, H. A. Hyde engaged in plant propagation and development of fruit trees,...

      Remembering Henry Alton Hyde (1871 - 1949) Pioneer horticulturist and nurseryman   For 59 years in the Monterey Bay area, H. A. Hyde engaged in plant propagation and development of fruit trees,...

        In memory of Ann Cadwick and Marlene Braun

        In memory of Ann Cadwick and Marlene Braun whose love and dedication for the Carrizo will not be forgotten. Remembering not that they died but celebrating their lives.

        In memory of Ann Cadwick and Marlene Braun whose love and dedication for the Carrizo will not be forgotten. Remembering not that they died but celebrating their lives.

          A Continuing Legacy

          A Continuing Legacy   The Carrizo Plain was a gathering place for the Chumash and other native peoples. Painted Rock was a sacred site to these Native Americans who lived close to nature.   The...

          A Continuing Legacy   The Carrizo Plain was a gathering place for the Chumash and other native peoples. Painted Rock was a sacred site to these Native Americans who lived close to nature.  ...

            Santa Cruz Wharf 100th Anniversary

            Santa Cruz Wharf 100th Anniversary December 5, 2014   City of Santa Cruz City Council Lynn Robinson, Mayor, Done Lane, Vice Mayor, Hilary Bryant, Pamela Comstock, Cynthia Mathews, Micah Posner,...

            Santa Cruz Wharf 100th Anniversary December 5, 2014   City of Santa Cruz City Council Lynn Robinson, Mayor, Done Lane, Vice Mayor, Hilary Bryant, Pamela Comstock, Cynthia Mathews, Micah Posner,...

              Reverend Herschel Harkins Memorial

              Reverend Herschel Harkins Memorial Pacifica Pier Dedicated to a fisher of menSubmitted by: Eric Goodill

              Reverend Herschel Harkins Memorial Pacifica Pier Dedicated to a fisher of menSubmitted by: Eric Goodill

                Fremont Peak

                Fremont Peak   Fremont Peak was called Gavilan Peak in early Spanish times. Gavilan in English means "hawk." In 1846 Capt. John Charles Fremont, brevet captain of topographical engineers of the...

                Fremont Peak   Fremont Peak was called Gavilan Peak in early Spanish times. Gavilan in English means "hawk." In 1846 Capt. John Charles Fremont, brevet captain of topographical engineers of...

                  John Charles Fremont

                  John Charles Fremont 1813 -  1890   John Charles Fremont was a naturalist, explorer, scientist and captain with the U.S. Topographical Engineers on his third expedition to the west when he camped...

                  John Charles Fremont 1813 -  1890   John Charles Fremont was a naturalist, explorer, scientist and captain with the U.S. Topographical Engineers on his third expedition to the west when he camped...

                    Dedicated in memory of Tim Crawford and Martin Alvarado

                    Dedicated in memory of Tim Crawford and Martin Alvarado who lost their lives on February 7, 2007, while performing underwater inspections at the Dos Amigos pumping plant. They sacrificed their...

                    Dedicated in memory of Tim Crawford and Martin Alvarado who lost their lives on February 7, 2007, while performing underwater inspections at the Dos Amigos pumping plant. They sacrificed their...

                      San Luis Unit

                      San Luis Unit   Joint facilities of the Central Valley Project and State Water Project   Dedicated by Secretary of Interior Stewart L. Udall April 20, 1968   Constructed by United States...

                      San Luis Unit   Joint facilities of the Central Valley Project and State Water Project   Dedicated by Secretary of Interior Stewart L. Udall April 20, 1968   Constructed by United States...

                        Romero Overlook

                        Romero Overlook Visitors facilities for the San Luis Dam and San Luis ReservoirSubmitted by: Eric Goodill

                        Romero Overlook Visitors facilities for the San Luis Dam and San Luis ReservoirSubmitted by: Eric Goodill

                          In Memory of the Yokut Indians

                          In memory of the Yokut Indians who were here first and named the valley Cholame, The Beautiful One. To Norman F. "Buck" Kester who epitomized the pioneering spirit of the early settlers and to all...

                          In memory of the Yokut Indians who were here first and named the valley Cholame, The Beautiful One. To Norman F. "Buck" Kester who epitomized the pioneering spirit of the early settlers and to...

                            Restoration of the Merchant Marine Memorial

                            Restoration of this Memorial by Members of the Golden Gate Chapter San Francisco, CA of the American Merchant Marine Veterans, and Kings Point U.S. "Merchant Marine Academy" Alumni. Dedicated to...

                            Restoration of this Memorial by Members of the Golden Gate Chapter San Francisco, CA of the American Merchant Marine Veterans, and Kings Point U.S. "Merchant Marine Academy" Alumni. Dedicated to...

                              The Reverend Laurentine Hamilton

                              The Reverend Laurentine Hamilton 1826 - 1882   The Naming of Mount Hamilton In the late summer of 1861, William H. Brewer, director of field work for the California State Geological Survey,...

                              The Reverend Laurentine Hamilton 1826 - 1882   The Naming of Mount Hamilton In the late summer of 1861, William H. Brewer, director of field work for the California State Geological...

                                James Lick

                                James Lick August 25, 1796 - October 1, 1876 Pennsylvania Dutch Farm Boy - Master Craftsman and Pianomaker - South American Business Entrepreneur - California Pioneer - Real Estate Investor -...

                                James Lick August 25, 1796 - October 1, 1876 Pennsylvania Dutch Farm Boy - Master Craftsman and Pianomaker - South American Business Entrepreneur - California Pioneer - Real Estate Investor...

                                  James Edward Keeler

                                  In memory of James Edward Keeler ScD. director of Lick Observatory 1989 - 1900.   "Surveyed God's beauteous firmament unrolled like to a book new writ in golden words. And turned the azure scroll...

                                  In memory of James Edward Keeler ScD. director of Lick Observatory 1989 - 1900.   "Surveyed God's beauteous firmament unrolled like to a book new writ in golden words. And turned the azure...

                                    Shay Locomotive

                                    National Historic Mechanical Engineering Landmark Felton, California   Heisler locomotive, built by Stearns Manufacturing Company, 1899. Shay locomotive, built by Lima Locomotive Works, 1912....

                                    National Historic Mechanical Engineering Landmark Felton, California   Heisler locomotive, built by Stearns Manufacturing Company, 1899. Shay locomotive, built by Lima Locomotive Works,...

                                      First Saw Mill

                                      First Saw Mill   About three hundred feet south of this monument on the banks of Alambique Creek, stood San Mateo County's first saw mill built by Charles Brown in 1847. About the same time Dennis...

                                      First Saw Mill   About three hundred feet south of this monument on the banks of Alambique Creek, stood San Mateo County's first saw mill built by Charles Brown in 1847. About the same time...

                                        San Luis Camp Adobe

                                        San Luis Camp Adobe   Oldest building in Merced County, built in 1848 by Francisco Perez Pacheco and his son on Rancho San Luis Gonzaga. Later a stopping place for vaqueros while driving cattle to...

                                        San Luis Camp Adobe   Oldest building in Merced County, built in 1848 by Francisco Perez Pacheco and his son on Rancho San Luis Gonzaga. Later a stopping place for vaqueros while driving cattle to...