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

Port Harford Pier

PORT HARFORD PIER IN 1873 ENTREPRENEUR JOHN HARFORD BUILT A WHARF AT THE WESTERLY END OF SAN LUIS BAY TO ACCOMMODATE GROWING CARGO SHIPPING AND PASSENGER TRAVEL ON THE CENTRAL COAST. THE PORT...

PORT HARFORD PIER IN 1873 ENTREPRENEUR JOHN HARFORD BUILT A WHARF AT THE WESTERLY END OF SAN LUIS BAY TO ACCOMMODATE GROWING CARGO SHIPPING AND PASSENGER TRAVEL ON THE CENTRAL COAST. THE...

    Patriot Corner

    Welcome to PATRIOT CORNER O beautiful for patriot dream That sees beyond the years Thine alabaster cities gleam Undimmed by human tears! —Amerca the Beautiful Katharine Lee Bates In This Special...

    Welcome to PATRIOT CORNER O beautiful for patriot dream That sees beyond the years Thine alabaster cities gleam Undimmed by human tears! —Amerca the Beautiful Katharine Lee Bates In This...

    • patriot
    • los altos

    Jenny Lake Boathouse

      Iron for Gold

      Iron for Gold Dedicated to Richard “Dick” Zembiec Long-time Minerals Office (1984 - 2000) for Tahoe National Forest The collection of early minis equipment fulfills one of Dick’s long-term wishes,...

      Iron for Gold Dedicated to Richard “Dick” Zembiec Long-time Minerals Office (1984 - 2000) for Tahoe National Forest The collection of early minis equipment fulfills one of Dick’s long-term...

      • gold country
      • mining

      New Life for an Old Mountain

        Scanning the Skies

          Life on the Summit

            Early People of Mount Umunhum

              Charles Taze Russell

              Charles Taze Russell (1852-1916) Pastor Russell formed a Bible study group in Allegheny city in the 1870s; developed into the Watch Tower Bible & Tract Society. It became the legal corporation for...

              Charles Taze Russell (1852-1916) Pastor Russell formed a Bible study group in Allegheny city in the 1870s; developed into the Watch Tower Bible & Tract Society. It became the legal corporation...

              • allegheny city
              • 19th century
              • jehovah's witnesses

              Battery Mendell-- Keeping the enemy at bay

              Golden Gate National Recreation Area Battery Mendell Keeping the enemy at bay Battery Mendell's mission was to keep enemy warships farther from San Francisco's harbor than any of the earlier...

              Golden Gate National Recreation Area Battery Mendell Keeping the enemy at bay Battery Mendell's mission was to keep enemy warships farther from San Francisco's harbor than any of the...

              • marin headlands
              • battery
              • disappearing gun

              Blue Star Memorial Highway

              National Council of State Garden Clubs Blue Star Memorial Highway A tribute to the Armed Forces that have defended the United State of America Sponsored by Desert Empire District, California...

              National Council of State Garden Clubs Blue Star Memorial Highway A tribute to the Armed Forces that have defended the United State of America Sponsored by Desert Empire District,...

                Bonneville Salt Flats

                Welcome to the Bonneville Salt Flats and Utah's famed measured mile--stie of world land-speed record runs. Utah's famed measured mile is located approximately seven miles beyond this marker, well...

                Welcome to the Bonneville Salt Flats and Utah's famed measured mile--stie of world land-speed record runs. Utah's famed measured mile is located approximately seven miles beyond this marker,...

                • salt flat
                • raceway
                • speed record

                Bradley J. Honholt

                In Loving Memory of Bradley J. Honholt 1932–2008 Chief Civil Engineer Roaring Camp & Big Trees Narrow Gauge Railroad Submitted by: Eric Goodill

                In Loving Memory of Bradley J. Honholt 1932–2008 Chief Civil Engineer Roaring Camp & Big Trees Narrow Gauge Railroad Submitted by: Eric Goodill

                • roaring camp

                History of the Cal Poly Research Pier

                Cal Poly Center for Coastal Marine Sciences PIER INTO THE PAST Cal Poly’s pier has undergone change throughout its history, shifting purpose from industrial use to a center for marine research &...

                Cal Poly Center for Coastal Marine Sciences PIER INTO THE PAST Cal Poly’s pier has undergone change throughout its history, shifting purpose from industrial use to a center for marine research...

                  Summits of the Bay Area

                    A Sacred Site

                      Mount Umunhum

                        Conservation Lands

                          Helping Hand Hall

                            Hacienda Hotel (Red Sign)