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

Matthews Farm

In 1848 Thomas and Margaret Spencer Matthews came to Worth Township from Ontario, Canada, following other farm families who migrated from Upper Canada to Michigan. Matthews’s grandfather, Thomas...

In 1848 Thomas and Margaret Spencer Matthews came to Worth Township from Ontario, Canada, following other farm families who migrated from Upper Canada to Michigan. Matthews’s grandfather, Thomas...

  • michigan
  • michigan his...

Fort Holmes

Here in 1812, on the island’s highest point, a blockhouse and stockade were built by the British and named Fort George. It was the bulwark of British defenses in 1814 when the American attack was...

Here in 1812, on the island’s highest point, a blockhouse and stockade were built by the British and named Fort George. It was the bulwark of British defenses in 1814 when the American attack was...

  • michigan
  • michigan his...

EUVE

Non-flight model of one of 3 scanning telescopes from the Extreme Ultraviolet Explorer (EUVE) spacecraft, which operated 1992-2001 & re-entered over Egypt in 2002. (the 2nd mission I worked on)...

Non-flight model of one of 3 scanning telescopes from the Extreme Ultraviolet Explorer (EUVE) spacecraft, which operated 1992-2001 & re-entered over Egypt in 2002. (the 2nd mission I worked...

    At This Site Paul Revere Landed

    At this site Paul Revere landed on the night of April 18, 1775 to begin his midnight ride Dedicated by The Massachusetts Society Sons of the American Revolution April, 1999   [ Submitted by @RoadTripNE

    At this site Paul Revere landed on the night of April 18, 1775 to begin his midnight ride Dedicated by The Massachusetts Society Sons of the American Revolution April, 1999   [ Submitted by @RoadTripNE

      The Berry

      “The Berry” The Berry Hotel, one of America’s premier hotels, stood here from 1892 to 1974. Athenian Edward Cornelius Berry, a free black who had been educated at the Albany Enterprise Academy,...

      “The Berry” The Berry Hotel, one of America’s premier hotels, stood here from 1892 to 1974. Athenian Edward Cornelius Berry, a free black who had been educated at the Albany Enterprise Academy,...

        Jackie Robinson

        IN THIS BUILDING  on April 10th, 1947 JACKIE ROBINSON RECEIVED HIS HISTORIC CALL FROM THE BROOKLYN DODGERS AND CHANGED AMERICA HE LIVED ON THE 11TH FLOOR IN ROOM 1169 OF THE FORMER MCALPIN...

        IN THIS BUILDING  on April 10th, 1947 JACKIE ROBINSON RECEIVED HIS HISTORIC CALL FROM THE BROOKLYN DODGERS AND CHANGED AMERICA HE LIVED ON THE 11TH FLOOR IN ROOM 1169 OF THE FORMER...

        • baseball
        • african american
        • dodgers
        • jackie robinson

        Major General John Stark

        Submitted by @loganpass

        Submitted by @loganpass

          Bell Tower

          Submitted by @jqmcd

          Submitted by @jqmcd

          • frank lloyd wright
          • boice
          • youngker
          • 1978

          Donated to the Port of San Francisco

            The Pioneer Mariani Family

              Dave Fowler, Chief Engineer, Ghirardelli Square

                Ghirardelli Square

                  Raymonnd James Sontag, Ehrman Professor of HIstory

                    John Galen Howard

                      Memorial Glade

                        Memorial Pool

                          Le Conte

                            Jack London 1876-1916

                              Harold "Hal" A. Ellis, Jr.

                              • oakland
                              • ellis
                              • grubb
                              • redevelopment
                              • jack london square
                              • heinold's

                              Origins of Oakland

                              • jack london square
                              • oakland