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

Wadsworth Mansion

This plaque is on the mansion property as you walk from the upper parking lot to the front door. THE WADSWORTH MANSION  Middletown's most palatial "Gilded Age" estate, the Long Hill mansion was...

This plaque is on the mansion property as you walk from the upper parking lot to the front door. THE WADSWORTH MANSION  Middletown's most palatial "Gilded Age" estate, the Long Hill mansion...

  • middletown
  • ct
  • wadsworth
  • mansion
  • panama
  • panama canal
  • concrete
  • steel-reinfo...

Birthsite of W.E.B. Du Bois

"I WAS BORN BY A GOLDEN RIVER AND IN THE SHADOW OF TOW GREAT HILLS, FIVE YEARS AFTER THE EMANCIPATION PROCLAMATION"  BIRTHPLACE OF W.E.B DUBOIS (1868-1963)  PREMIER ARCHITECT OF THE AMERICAN CIVIL...

"I WAS BORN BY A GOLDEN RIVER AND IN THE SHADOW OF TOW GREAT HILLS, FIVE YEARS AFTER THE EMANCIPATION PROCLAMATION"  BIRTHPLACE OF W.E.B DUBOIS (1868-1963)  PREMIER ARCHITECT OF THE AMERICAN CIVIL...

  • great barrington
  • massachusetts
  • african american
  • civil rights

This Coastal Sea Star

    Largest Grant Wood Murals

    Grant Wood's largest murals are located in Iowa State's Parks Library. Wood, best known for his painting American Gothic that depicts a stoic farm couple, was commissioned by Iowa State in the...

    Grant Wood's largest murals are located in Iowa State's Parks Library. Wood, best known for his painting American Gothic that depicts a stoic farm couple, was commissioned by Iowa State in...

      Fairmont Ave Streetscape

        First Land-Grant

        Iowa started an education revolution as the first state to accept the 1862 Morrill Act terms. The act allowed Iowa to sell federal land to finance a new college open to all regardless of wealth,...

        Iowa started an education revolution as the first state to accept the 1862 Morrill Act terms. The act allowed Iowa to sell federal land to finance a new college open to all regardless of...

          Ellwood Oil Fields and Barnsdall-Rio Grande Gas Station & Restaurant

          ELLWOOD OIL FIELDS The First Oil Well of the Ellwood Oil Field Was Brough in 1000 feet South of this Spot in 1928 by the Barnsdall-Rio Grande Oil Company. It Was Referred to as Luton-Bell Number...

          ELLWOOD OIL FIELDS The First Oil Well of the Ellwood Oil Field Was Brough in 1000 feet South of this Spot in 1928 by the Barnsdall-Rio Grande Oil Company. It Was Referred to as Luton-Bell...

          • goleta
          • california

          Pure Uranium

          In 1942, a group of Iowa State scientists led by professors Frank Spedding and Harley Wilhelm developed the process to produce highly pure uranium. More than 2,000,000 pounds of uranium were...

          In 1942, a group of Iowa State scientists led by professors Frank Spedding and Harley Wilhelm developed the process to produce highly pure uranium. More than 2,000,000 pounds of uranium were...

            Birthplace of the Computer

            The world's first electronic digital computer was built on the Iowa State campus from 1939 through 1942 by John V. Atanasoff, a professor of physics and mathematics, and Clifford Berry, an...

            The world's first electronic digital computer was built on the Iowa State campus from 1939 through 1942 by John V. Atanasoff, a professor of physics and mathematics, and Clifford Berry,...

              First Ag Engineering Degree

              The first agricultural engineering degree in the world was granted at Iowa State University in 1910. J. Brownlee Davidson led the development of the discipline which applied engineering and...

              The first agricultural engineering degree in the world was granted at Iowa State University in 1910. J. Brownlee Davidson led the development of the discipline which applied engineering...