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

BIRTHPLACE OF MODERN ELECTRICITY

NEW YORK BIRTHPLACE OF MODERN ELECTRICITY HERE DISCOVERING MAGNETIC INDUCTION, JOSEPH HENRY PIONEERED THE TELEGRAPH AND ELECTRIC MOTOR, 1829-31

NEW YORK BIRTHPLACE OF MODERN ELECTRICITY HERE DISCOVERING MAGNETIC INDUCTION, JOSEPH HENRY PIONEERED THE TELEGRAPH AND ELECTRIC MOTOR, 1829-31

    John Herbert Chapman

    JOHN HERBERT CHAPMAN John Herbert Chapman (1921-1979) was born in London and educated at The University of Western Ontario, receiving a BSc (Honors) degree in 1948. After completing a PhD in...

    JOHN HERBERT CHAPMAN John Herbert Chapman (1921-1979) was born in London and educated at The University of Western Ontario, receiving a BSc (Honors) degree in 1948. After completing a PhD...

      The Black Snake Affair

      THE BLACK SNAKE AFFAIR In 1808. the Federal goverament. reacting to unfair British policies, passed an Embargo Act. forbidding trade with Great Britain. The Champlain Valley relied on trade with...

      THE BLACK SNAKE AFFAIR In 1808. the Federal goverament. reacting to unfair British policies, passed an Embargo Act. forbidding trade with Great Britain. The Champlain Valley relied on trade...

        EarthScope Plate Boundary Observation Station

        Submitted by @zxqwd

        Submitted by @zxqwd

          Captain Jock Porteous

          At this place on the night of September 7th 1736 Cpt. Jock Porteous of the Edinburgh City Guard was brutally lynched from a dyers pole by an Edinburgh Mob Erected by the Porteous Associates 7th...

          At this place on the night of September 7th 1736 Cpt. Jock Porteous of the Edinburgh City Guard was brutally lynched from a dyers pole by an Edinburgh Mob Erected by the Porteous Associates...

            The Franklin Institute

            Submitted by cruicej

            Submitted by cruicej

              Regional Districts BC

              Submitted by @robertdall

              Submitted by @robertdall

                Shire of Flinders Electric Ball

                SHIRE OF FLINDERS ELECTRIC BALL THIS SPHERE WAS PART OF A DEVICE DESIGNED BY A MR ROBILLIARD IN 1909, WITH A VIEW TO HARNESSING THE SEA TO PROVIDE ELECTRICITY FOR SORRENTO TOWNSHIP THE SPHERE WAS...

                SHIRE OF FLINDERS ELECTRIC BALL THIS SPHERE WAS PART OF A DEVICE DESIGNED BY A MR ROBILLIARD IN 1909, WITH A VIEW TO HARNESSING THE SEA TO PROVIDE ELECTRICITY FOR SORRENTO TOWNSHIP THE SPHERE...

                • although at ...
                • electric ball
                • severe wave action

                Perronkap Utrecht Centraal

                The plaque tells the story of the old railway station roof. In Dutch: perronkap. The iron roof was constructed in 1895. In 1968, when the station (Utrecht central station) was replaced by a new...

                The plaque tells the story of the old railway station roof. In Dutch: perronkap. The iron roof was constructed in 1895. In 1968, when the station (Utrecht central station) was replaced by a...

                • historic rai...
                • iron construction

                Stephen Henshaw

                IN MEMORY OF STEPHEN HENSHAW BUCKINGHAMSHIRE BATTALLION OX BUCKS LIGHT INFANTRY WHO WAS WOUNDED IN BATTLE LANGEMARK AUGUST 16" 1917. HE LAY WOUNDED ON THESE FIELD FOR SIX DAYS. HE WAS FOUND ON...

                IN MEMORY OF STEPHEN HENSHAW BUCKINGHAMSHIRE BATTALLION OX BUCKS LIGHT INFANTRY WHO WAS WOUNDED IN BATTLE LANGEMARK AUGUST 16" 1917. HE LAY WOUNDED ON THESE FIELD FOR SIX DAYS. HE WAS FOUND ON...

                  State of Washington John L. O'Brien Building

                  Submitted by @Ritterton

                  Submitted by @Ritterton

                    Great 1909 Auto Race

                    GREAT 1909 AUTO RACE From this point in front of The Tampa Daily Times Building on Nov. 23, 1909, was started the Tampa - to - Jacksonville "endurance run" to promote good roads for Florida....

                    GREAT 1909 AUTO RACE From this point in front of The Tampa Daily Times Building on Nov. 23, 1909, was started the Tampa - to - Jacksonville "endurance run" to promote good roads for...

                      In This House Jane Austen Lived Her Last Days And Died 18th July 1817

                      Submitted by @theoldstationuk

                      Submitted by @theoldstationuk

                        Transportation Encouraged Development

                          Dr. Lawrence F. Flick

                          DR. LAWRENCE F FLICK Pioneer in antituberculosis campaign and among first to recognize this disease was communicable. Organized first American tuberculosis society 1892. Founded White Haven...

                          DR. LAWRENCE F FLICK Pioneer in antituberculosis campaign and among first to recognize this disease was communicable. Organized first American tuberculosis society 1892. Founded White...

                            The First Telegraph Office in the Southern Hemisphere

                            Submitted by @_marty_k

                            Submitted by @_marty_k

                              Hess v. Indiana

                              Hess v. Indiana An Indiana University student protest led to a landmark First Amendment case. In response to the National Guard's killing of four students demonstrating against the Vietnam War at...

                              Hess v. Indiana An Indiana University student protest led to a landmark First Amendment case. In response to the National Guard's killing of four students demonstrating against the Vietnam War...

                                Fruit Jar High

                                A two-story red brick building that housed Berea's elementary and high schools stood on this corner until demolished in 1972. The high school was nicknamed, "Fruit Jar High" after an Incident in...

                                A two-story red brick building that housed Berea's elementary and high schools stood on this corner until demolished in 1972. The high school was nicknamed, "Fruit Jar High" after an Incident...

                                  John Goodricke

                                  From a window in Treasurer's House near this tablet. the young deaf and dumb astronomer JOHN GOODRICKE 1764 -1786 who was elected a Fellow of the Royal Society at the age of 21, observed the...

                                  From a window in Treasurer's House near this tablet. the young deaf and dumb astronomer JOHN GOODRICKE 1764 -1786 who was elected a Fellow of the Royal Society at the age of 21, observed...

                                    Benedict Arnold House

                                    HERE STOOD THE HOUSE OCCUPIED BY GEN. BENEDICT ARNOLD, FAMOUS REVOLUTIONARY WAR SOLDIER, PROMINENT MERCHANT AND TRADER 1787 TO 1791 NEW BRUNSWICK HISTORICAL SOCIETY Submitted by @bthubbard

                                    HERE STOOD THE HOUSE OCCUPIED BY GEN. BENEDICT ARNOLD, FAMOUS REVOLUTIONARY WAR SOLDIER, PROMINENT MERCHANT AND TRADER 1787 TO 1791 NEW BRUNSWICK HISTORICAL SOCIETY Submitted by @bthubbard