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

Dominion Astrophysical Observatory crest

From the Flickr group Historical Markers, photo by jpctalbot, full page.License is Attribution License

From the Flickr group Historical Markers, photo by jpctalbot, full page.License is Attribution License

    Canadian prime meridian plaque

    From the Flickr group Historical Markers, photo by jpctalbot, full page.License is Attribution License

    From the Flickr group Historical Markers, photo by jpctalbot, full page.License is Attribution License

      Jamie Fleeman

      From the Flickr group Historical Markers, photo by duncan, full page.License is Attribution-NonCommercial License

      From the Flickr group Historical Markers, photo by duncan, full page.License is Attribution- NonCommercial License

        Ohhhh, the Salem Oak...

        From the Flickr group Historical Markers, photo by fixedgear, full page.License is Attribution-NonCommercial-ShareAlike License

        From the Flickr group Historical Markers, photo by fixedgear, full page.License is Attribution- NonCommercial-ShareAlike License

          Lincoln Under Fire

          From the Flickr group Historical Markers, photo by AlbinoFlea, full page.License is Attribution-NonCommercial License

          From the Flickr group Historical Markers, photo by AlbinoFlea, full page.License is Attribution- NonCommercial License

            Eira in September

            From the Flickr group Historical Markers, photo by hugovk, full page.License is Attribution-NonCommercial-ShareAlike License

            From the Flickr group Historical Markers, photo by hugovk, full page.License is Attribution- NonCommercial-ShareAlike License

              Church was Robbed March 1840

              From the Flickr group Historical Markers, photo by hugovk, full page.License is Attribution-NonCommercial-ShareAlike License

              From the Flickr group Historical Markers, photo by hugovk, full page.License is Attribution- NonCommercial-ShareAlike License

                1836 stocks sign

                From the Flickr group Historical Markers, photo by hugovk, full page.License is Attribution-NonCommercial-ShareAlike License

                From the Flickr group Historical Markers, photo by hugovk, full page.License is Attribution- NonCommercial-ShareAlike License

                  Fort DeRussy

                  From the Flickr group Historical Markers, photo by AlbinoFlea, full page.License is Attribution-NonCommercial License

                  From the Flickr group Historical Markers, photo by AlbinoFlea, full page.License is Attribution- NonCommercial License

                    Dumbarton House Plaque

                    From the Flickr group Historical Markers, photo by AlbinoFlea, full page.License is Attribution-NonCommercial License

                    From the Flickr group Historical Markers, photo by AlbinoFlea, full page.License is Attribution- NonCommercial License

                      Peirce Mill

                      From the Flickr group Historical Markers, photo by AlbinoFlea, full page.License is Attribution-NonCommercial License

                      From the Flickr group Historical Markers, photo by AlbinoFlea, full page.License is Attribution- NonCommercial License

                        Kutz Bridge Plaque

                        From the Flickr group Historical Markers, photo by AlbinoFlea, full page.License is Attribution-NonCommercial License

                        From the Flickr group Historical Markers, photo by AlbinoFlea, full page.License is Attribution- NonCommercial License

                          Commemorative Plaque on Exterior of the Barney Studio House/Embassy of Latvia

                          From the Flickr group Historical Markers, photo by AlbinoFlea, full page.License is Attribution-NonCommercial License

                          From the Flickr group Historical Markers, photo by AlbinoFlea, full page.License is Attribution- NonCommercial License

                            Sir Sandford Fleming

                            From the Flickr group Historical Markers, photo by duncan, full page.License is Attribution-NonCommercial License

                            From the Flickr group Historical Markers, photo by duncan, full page.License is Attribution- NonCommercial License

                              Shetland Bus

                              From the Flickr group Historical Markers, photo by duncan, full page.License is Attribution-NonCommercial License

                              From the Flickr group Historical Markers, photo by duncan, full page.License is Attribution- NonCommercial License

                                Routon Mounds

                                 Routon has 7 mounds on the west bank of the Ouachita River. The 4 largest are rectangular with flat tops. The other 3 are dome shaped and less than 2 feet tall. The mound visible from the road is...

                                 Routon has 7 mounds on the west bank of the Ouachita River. The 4 largest are rectangular with flat tops. The other 3 are dome shaped and less than 2 feet tall. The mound visible from the road is...

                                  Fort Beauregard

                                   One-half mile west was one of four forts built by Confederates in May, 1863 to prevent the ascent of Federal gunboats on the Ouachita River. It was abandoned 1863, but was reoccupied in 1864.

                                   One-half mile west was one of four forts built by Confederates in May, 1863 to prevent the ascent of Federal gunboats on the Ouachita River. It was abandoned 1863, but was reoccupied in 1864.

                                  • louisiana
                                  • civil war

                                  McGuffee Mounds

                                  McGuffee has as many as 6 mounds on the west bank of the Ouachita River. Several of the mounds are well preserved and visible from the road. A C-shaped earthen ridge encloses the mounds....

                                  McGuffee has as many as 6 mounds on the west bank of the Ouachita River. Several of the mounds are well preserved and visible from the road. A C-shaped earthen ridge encloses the...

                                  • louisiana
                                  • native american

                                  Tew Lake Mounds

                                  Tew Lake has 3 small, irregularly shaped mounds. The 2 in pasture on the south side of Routon Road are almost 4 feet tall. The one north of Routon Road has been reduced in height by plowing and is...

                                  Tew Lake has 3 small, irregularly shaped mounds. The 2 in pasture on the south side of Routon Road are almost 4 feet tall. The one north of Routon Road has been reduced in height by plowing and...

                                  • louisiana
                                  • native american

                                  Troyville Earthworks (#2)

                                   An earthen wall and 9 mounds were once a prominent part of the landscape here. Early explorers described the largest mound or "Great Mound" as being 82 feet high, the tallest mound known in...

                                   An earthen wall and 9 mounds were once a prominent part of the landscape here. Early explorers described the largest mound or "Great Mound" as being 82 feet high, the tallest mound known in...

                                  • louisiana
                                  • native american