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

Walter Pierce Park

Roads to Diversity Adams Morgan Heritage Trail Walter Pierce Park The Rock Creek Valley, once home to Native Americans, had attracted European settlers by 1703. Before John Quincy Adams became...

Roads to Diversity Adams Morgan Heritage Trail Walter Pierce Park The Rock Creek Valley, once home to Native Americans, had attracted European settlers by 1703. Before John Quincy Adams...

    Mathew Carey (1760-1839)

    An Irish Catholic who emigrated to Philadelphia in 1784, Carey was a prominent printer and publisher and prolific writer. He was an influential political economist and nationalist, promoting the...

    An Irish Catholic who emigrated to Philadelphia in 1784, Carey was a prominent printer and publisher and prolific writer. He was an influential political economist and nationalist, promoting...

    • philadelphia
    • irish
    • immigration
    • printer

    Marc Blitzstein (1905-1964)

    An influential American composer, lyricist, and translator who brought vernacular to musical theater was born here. Works include the ground-breaking The Cradle Will Rock and an adaptation of The...

    An influential American composer, lyricist, and translator who brought vernacular to musical theater was born here. Works include the ground- breaking The Cradle Will Rock and an adaptation of The...

    • music
    • philadelphia

    A.M.E. Book Concern

    Here in 1836 a church related company began printing hymnals, religious materials, and works by Black authors of the period. In 1847 The Christian Recorder was published here. Bishop Benjamin...

    Here in 1836 a church related company began printing hymnals, religious materials, and works by Black authors of the period. In 1847 The Christian Recorder was published here. Bishop Benjamin...

    • philadelphia
    • churches
    • black history

    Pennsylvania Hospital

    This is the first hospital in the U.S. Chartered by Colonial Assembly in 1751 for "relief of the sick poor." Benjamin Franklin and Dr. Thomas Bond were its chief founders. First building, erected...

    This is the first hospital in the U.S. Chartered by Colonial Assembly in 1751 for "relief of the sick poor." Benjamin Franklin and Dr. Thomas Bond were its chief founders. First building,...

    • philadelphia
    • hospital
    • medicine

    The German Society of Philadelphia

    The oldest German American organization in the US was founded Dec. 26, 1764, in Philadelphia to provide legal aid, welfare, and language support to German immigrants. Its library, containing one...

    The oldest German American organization in the US was founded Dec. 26, 1764, in Philadelphia to provide legal aid, welfare, and language support to German immigrants. Its library, containing...

    • immigration
    • philadelphia
    • german
    • library

    Frank Furness

    A nationally influential architect, his forceful designs and bold use of industrial materials helped shape American modernism. His works include the Pa. Academy of Fine Arts and U. of Penn...

    A nationally influential architect, his forceful designs and bold use of industrial materials helped shape American modernism. His works include the Pa. Academy of Fine Arts and U. of...

    • philadelphia
    • architecture

    Sir Christopher Wren

    Submitted by @simontillo

    Submitted by @simontillo

    • 1502
    • st. paul's cathedral
    • catherine of aragon

    AIDS Library of Philadelphia

    Submitted by Eli Anders (@elioanders) 

    Submitted by Eli Anders (@elioanders) 

    • aids
    • lgbtq
    • philadelphia

    East Boston Greenway

    Submitted by @Ritterton

    Submitted by @Ritterton

      Columbus in Galway

      ON THESE SHORES  AROUND 1477 THE  GENOESE SAILOR  CRISTOFORO  COLOMBO  FOUND SURE SIGNS  OF LAND BEYOND  THE ATLANTIC Submitted by @jackwidely

      ON THESE SHORES  AROUND 1477 THE  GENOESE SAILOR  CRISTOFORO  COLOMBO  FOUND SURE SIGNS  OF LAND BEYOND  THE ATLANTIC Submitted by @jackwidely

      • 1477
      • columbus
      • galway

      This Shore Line of San Francisco

      THIS SHORE LINE OF SAN FRANCISCO  BAY REACHED A POINT TWENTY-FIVE  FEET NORTHEASTERLY FROM THIS SPOT  AT THE TIME GOLD WAS DISCOVERED  BY JAMES W. MARSHALL AT COLOMA,  CALIFORNIA, JANUARY 24,...

      THIS SHORE LINE OF SAN FRANCISCO  BAY REACHED A POINT TWENTY-FIVE  FEET NORTHEASTERLY FROM THIS SPOT  AT THE TIME GOLD WAS DISCOVERED  BY JAMES W. MARSHALL AT COLOMA,  CALIFORNIA, JANUARY...

        Fenway Park

        Submitted by @Ritterton

        Submitted by @Ritterton

          To The Men of Trinity Who Gave Their Lives For Freedom and Humanity

          Submitted by @Ritterton

          Submitted by @Ritterton

            George Lincoln Richardson

            Submitted by @Ritterton

            Submitted by @Ritterton

            • verdun
            • machine gun
            • wwi
            • infantry
            • richardson

            Bristol Stock Exchange

            THIS TABLET WAS PLACED HERE BY THE  MEMBERS OF THE BRISTOL STOCK EXCHANGE  TO RECORD  THE GIFT OF THIS BUILDING  TO THE EXCHANGE  BY THEIR PRESIDENT  GEORGE WHITE  AUGUST 1903  Submitted by @theuncommon

            THIS TABLET WAS PLACED HERE BY THE  MEMBERS OF THE BRISTOL STOCK EXCHANGE  TO RECORD  THE GIFT OF THIS BUILDING  TO THE EXCHANGE  BY THEIR PRESIDENT  GEORGE WHITE  AUGUST 1903  Submitted by @theuncommon

              The Beginning of the Grand Army of the Republic

              Submitted by @Ritterton

              Submitted by @Ritterton

                Congressional Medal of Honor, WWI

                Submitted by @Ritterton

                Submitted by @Ritterton

                  WWI Chaplains

                  WHERE SHELLS BURST AND MEN FELL BROKEN AND BLEEDING THEY CALMLY ADMINISTERED HEROIC WITNESS TO THE POWER OF THE FAITH THEY PREACHED ERECTED BY THE COMMONWEALTH TO COMMEMORATE THE SERVICE OF ITS...

                  WHERE SHELLS BURST AND MEN FELL BROKEN AND BLEEDING THEY CALMLY ADMINISTERED HEROIC WITNESS TO THE POWER OF THE FAITH THEY PREACHED ERECTED BY THE COMMONWEALTH TO COMMEMORATE THE SERVICE OF...

                    United States 8th Army Air Force

                    UNITED STATES  8TH ARMY AIR FORCE  IN HONOR OF THE MEN AND WOMEN  OF MASSACHUSETTS WHO SERVED  1942 1945  IN THE LONG DARK YEARS, THE TRIALS,  THE TRIBULATIONS BEFORE THEM  UNDAUNTED THEY...

                    UNITED STATES  8TH ARMY AIR FORCE  IN HONOR OF THE MEN AND WOMEN  OF MASSACHUSETTS WHO SERVED  1942 1945  IN THE LONG DARK YEARS, THE TRIALS,  THE TRIBULATIONS BEFORE THEM  UNDAUNTED THEY...

                    • shields of s...
                    • the long dark years
                    • united not i...