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

Original Site of the First Presbyterian Church

Organized May 27, 1827, after twelve years of missionary work by the Presbytery of Mississippi, John Dorrance first minister. Sanctuary dedicated in 1829. Rebuilt in 1854 on the same site and...

  • louisiana
  • baton rouge
  • church

Killed When A Span of The Westgate Bridge Collapsed

Plaque reads: 'Construction workers employed on Westgate bridge erected and dedicated this memorial to their co-workers who were killed when a span of the bridge collapsed during construction At...

  • melbourne
  • bridge
  • australia
  • industrial accident
  • construction

Site of Blossom Rock Navigation Trees

Site of Blossom Rock Navigation Trees Until at least 1851, redwood trees on this site were used as landmarks to avoid striking the treacherous submerged Blossom Rock in San Francisco Bay west of...

  • east bay yesterday
  • redwoods
  • navigation tree
  • blossom rock

Buckhead MARTA

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

    Mission San Miguel Arcangel

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

      Wheeler's Cav. at Decatur

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

        Shire Oak

        From the Flickr group Historical Markers, photo by Tim Green aka atoach, full page.License is Attribution License

          Allegheny Arsenal

          From the Flickr group Historical Markers, photo by sportsedit15224, full page.License is Attribution- NonCommercial-ShareAlike License

            Town Hall Clock Repairs

            Town Hall Clock Repairs 2015 Funded by a kind donation from the DENT-BROCKLEHURST FAMILY CHARITABLE TRUST Submitted by @caddickbrown

              Queen Anne Cottage

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