A gigantic map of all the cool plaques in the world. A project of 99% Invisible.
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The most recent plaques:

Water Powered Mills of Brownsville

    Shirley Carney

      The Site of the Last of Three No-Warning Car-Bomb Explosions

      IN REMEMBRANCE THIS STONE MARKS THE SITE WHERE THE LAST OF THREE NO-WARNING CAR-BOMB EXPLOSIONS OCCURRED ON 17TH MAY 1974 IN WHICH 2 PEOPLE LOST THEIR LIVES  Installed by Justice for the...

      IN REMEMBRANCE THIS STONE MARKS THE SITE WHERE THE LAST OF THREE NO-WARNING CAR-BOMB EXPLOSIONS OCCURRED ON 17TH MAY 1974 IN WHICH 2 PEOPLE LOST THEIR LIVES  Installed by Justice for...

      • dublin
      • troubles
      • car bomb

      Max Baer

      MAX BAER RAISED IN LIVERMORE, CALIFORNIA, BAER BEGAN HIS BOXING CAREER IN 1929 AT AGE 20 IN OAKLAND. HE WON HIS FIRST TWELVE FIGHTS BY KNOCKOUTS. IN 1933, WEARING THE STAR OF DAVID ON HIS TRUNKS,...

      MAX BAER RAISED IN LIVERMORE, CALIFORNIA, BAER BEGAN HIS BOXING CAREER IN 1929 AT AGE 20 IN OAKLAND. HE WON HIS FIRST TWELVE FIGHTS BY KNOCKOUTS. IN 1933, WEARING THE STAR OF DAVID ON HIS TRUNKS,...

      • livermore
      • boxing
      • 1934

      Tehachapi Loop - Calif Historic 508

        California Historical Landmark Tehachapi Loop From this spot may be seen a portion of the world renowned "loop". It was completed in 1876 under the direction of William Hood, Southern Pacific...

        California Historical Landmark Tehachapi Loop From this spot may be seen a portion of the world renowned "loop". It was completed in 1876 under the direction of William Hood, Southern...

      • historic landmark
      • railroad
      • california

      Tehachapi Loop - ASCE Plaque

      Placed and commemorated in 1998 by History & Heritage Committee  Los Angeles Section and Southern San Joaquin Branch  American Society of Civil Engineers   The Tehachapi Loop is a 0.73-mile (1.17...

      Placed and commemorated in 1998 by History & Heritage Committee  Los Angeles Section and Southern San Joaquin Branch  American Society of Civil Engineers   The Tehachapi Loop is a 0.73-mile (1.17...

      • historic landmark
      • railroad
      • asce

      In Memory of Eva Marie Schicke

      This is one of two markers erected at a roadside overlook -- which the U.S. Forest Service modestly calls Rim of the World -- in memory of wildland firefighters killed in blazes in Stanislaus...

      This is one of two markers erected at a roadside overlook -- which the U.S. Forest Service modestly calls Rim of the World -- in memory of wildland firefighters killed in blazes in...

        Leonidas Taylor and the Steamer 'Belle'

        Driving along the Sacramento River, about halfway between the California's capital and the town of Woodland, you pass the obelisk above. It’s along a stretch of 55 mph highway, meaning much of the...

        Driving along the Sacramento River, about halfway between the California's capital and the town of Woodland, you pass the obelisk above. It’s along a stretch of 55 mph highway, meaning much of...

          Crown Hill

          Crown Hill Cemetery founded in 1863 is the fourth largest cemetery in America. The history of Indiana and the United States is reflected in its monuments. President Benjamin Harrison, vice...

          Crown Hill Cemetery founded in 1863 is the fourth largest cemetery in America. The history of Indiana and the United States is reflected in its monuments. President Benjamin Harrison,...

          • indiana
          • cemetery

          One of the Last of the Stage Drivers

          There are signs for two historical markers on Highway 120 as you approach this old Gold Rush town: one for the "Mark Twain-Bret Harte Trail" and one for the town's original Wells Fargo & Co....

          There are signs for two historical markers on Highway 120 as you approach this old Gold Rush town: one for the "Mark Twain-Bret Harte Trail" and one for the town's original Wells Fargo &...

          • california
          • tuolumne county
          • wells fargo
          • mother lode

          David Erickson Memorial

            This is one of two markers erected at a roadside overlook -- which the U.S. Forest Service modestly calls Rim of the World -- in memory of wildland firefighters killed in blazes in Stanislaus...

            This is one of two markers erected at a roadside overlook -- which the U.S. Forest Service modestly calls Rim of the World -- in memory of wildland firefighters killed in blazes in...

          • california
          • stanislaus n...
          • highway 120
          • wildfires
          • firefighters

          The first grave of Alexandre Dumas

          Alexandre Dumas père was buried here December 8th 1870. His body was transferred to Villers-Cotterêts on April 15th 1872. Since November 30th he rests at the Panthéon in Paris.   submitted by...

          Alexandre Dumas père was buried here December 8th 1870. His body was transferred to Villers- Cotterêts on April 15th 1872. Since November 30th he rests at the Panthéon in Paris.   submitted...

          • alexandre dumas père
          • 1870
          • grave
          • neuville-les-dieppe
          • normandie
          • france

          Tom Kilburn

          TOM KILBURN 1921 - 2001  He co-invented the world's first ever stored-program computer. He wrote its first program in June 1948 while travelling from this station to Manchester University where he...

          TOM KILBURN 1921 - 2001  He co-invented the world's first ever stored-program computer. He wrote its first program in June 1948 while travelling from this station to Manchester University where he...

          • computer science
          • computer
          • stored-program

          Bernard Frank

          DEDICATED TO BERNARD FRANK 1902 - 1964 FORESTER, LAND ECONOMIST, OUTDOORSMAN , INTERNATIONAL CONSERVATIONIST WITH SOME FORTY YEARS EXPERIENCE IN FORESTRY, INCLUDING THIRTY YEARS OF CONCERN WITH...

          DEDICATED TO BERNARD FRANK 1902 - 1964 FORESTER, LAND ECONOMIST, OUTDOORSMAN , INTERNATIONAL CONSERVATIONIST WITH SOME FORTY YEARS EXPERIENCE IN FORESTRY, INCLUDING THIRTY YEARS OF CONCERN WITH...

          • maryland
          • park
          • conservation

          Mallory-Neely House

          Built circa 1852, this 25-room Italian villa-style mansion was home to the Isaac Kirtland, Benjamin Babb, James C. Neely, Daniel Grant, and Barton Lee Mallory families between 1852 and 1969....

          Built circa 1852, this 25-room Italian villa-style mansion was home to the Isaac Kirtland, Benjamin Babb, James C. Neely, Daniel Grant, and Barton Lee Mallory families between 1852 and...

          • shelby county
          • tennessee

          Memphis Queen II

          Built in 1955 by the Dubuque Boat & Boiler Company, The Memphis Queen II was the first all-steel passenger ship on the Mississippi River. Measuring 85 feet long by 43 feet wide, it features two...

          Built in 1955 by the Dubuque Boat & Boiler Company, The Memphis Queen II was the first all- steel passenger ship on the Mississippi River. Measuring 85 feet long by 43 feet wide, it features two...

          • shelby county
          • tennessee

          Lenin Statue

          This is not V.I. Lenin This statue is hollow. Inside are six inches of water in ditch along a country road just outside of the small village of Russia, Ohio, a boy in a threadbare sweater, his...

          This is not V.I. Lenin This statue is hollow. Inside are six inches of water in ditch along a country road just outside of the small village of Russia, Ohio, a boy in a threadbare...

          • lenin
          • fremont
          • washington
          • poem
          • russia
          • ohio

          Old United States Mint

          Old United States Mint The Old Mint (1869), San Francisco's second, is California's only such Federal Greek Revival structure. Due to unsurpassed productivity, it became a sub-treasury in 1874....

          Old United States Mint The Old Mint (1869), San Francisco's second, is California's only such Federal Greek Revival structure. Due to unsurpassed productivity, it became a sub-treasury in 1874....

          • mint
          • 1869
          • 1906
          • greek revival

          Site of the First U.S. Branch Mint

          SITE OF FIRST U.S. BRANCH MINT THE FIRST UNITED STATES BRANCH MINT IN SAN FRANCISCO WAS AUTHORIZED BY CONGRESS JULY 3, 1852. AND OPENED FOR OPERATION APRIL 3, 1854. DR. L.A. BIRDSALL WAS THE FIRST...

          SITE OF FIRST U.S. BRANCH MINT THE FIRST UNITED STATES BRANCH MINT IN SAN FRANCISCO WAS AUTHORIZED BY CONGRESS JULY 3, 1852. AND OPENED FOR OPERATION APRIL 3, 1854. DR. L.A. BIRDSALL WAS THE...

          • san francisco
          • california
          • bay area
          • mint
          • branch mint

          Curt C. (Curt) Flood

          • free agent
          • oakland
          • alameda
          • san francisco