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

Huddie "Leadbelly" Ledbetter

Blues singer from Mooringsport, La. (1888-1949). He played 12 string guitar on Shreveport's Fannin St., sang his way out of prison, and became a folk hero with songs like "Goodnight Irene,"...

Blues singer from Mooringsport, La. (1888-1949). He played 12 string guitar on Shreveport's Fannin St., sang his way out of prison, and became a folk hero with songs like "Goodnight Irene,"...

  • louisiana
  • entertainment
  • african american

First Over Water Oil Well

The world’s first over water oil well was completed in Caddo Lake in 1911. The Ferry Lake No. 1 was erected by Gulf Refining Co. The well bottomed at 2,185 feet and produced 450 barrels per day.

The world’s first over water oil well was completed in Caddo Lake in 1911. The Ferry Lake No. 1 was erected by Gulf Refining Co. The well bottomed at 2,185 feet and produced 450 barrels per day.

  • louisiana
  • commerce

3rd Caddo Courthouse

Parish Judge Washington Jenkins, on Nov. 4, 1840, sold his 2-story frame house to Caddo Parish for a courthouse. A jail replaced the kitchen. Courthouse was sold at foreclosure in 1855 at its own door.

Parish Judge Washington Jenkins, on Nov. 4, 1840, sold his 2-story frame house to Caddo Parish for a courthouse. A jail replaced the kitchen. Courthouse was sold at foreclosure in 1855 at its own door.

  • louisiana
  • politics

Moncla

Colonized in the late 1700s.Named forDr. Joseph Thibault Moncla1806-1883   Emigrant of Moncla, France, and husband of Arsene Bordelon. This settlement, on the south bank of the Red River, included...

Colonized in the late 1700s.Named forDr. Joseph Thibault Moncla1806-1883   Emigrant of Moncla, France, and husband of Arsene Bordelon. This settlement, on the south bank of the Red River, included...

  • louisiana
  • settlement

First Shriners Hospital

On this site a dedicated group of men from the Shriners International Fraternity began the legacy of providing free healthcare services to children  by opening the world's First Shriners Hospital...

On this site a dedicated group of men from the Shriners International Fraternity began the legacy of providing free healthcare services to children  by opening the world's First Shriners Hospital...

  • louisiana
  • hospital

Marksville "Colored" School Site

C.P. Couvillion donated this site in 1905 for the construction of a school for "Negroes" in the Marksville area. Its first eighth grade class began in 1933. First graduation was in 1940. Classes...

C.P. Couvillion donated this site in 1905 for the construction of a school for "Negroes" in the Marksville area. Its first eighth grade class began in 1933. First graduation was in 1940. Classes...

  • louisiana
  • african-american

Congregational First Baptist Church

Organized in 1889 under the leadership of Rev. J.W. Womack of Beggs, Oklahoma. Rev. and Mrs. Womack opened the first private "colored" school in Avoyelles Parish. Rev. A.L. Holmes was pastor of...

Organized in 1889 under the leadership of Rev. J.W. Womack of Beggs, Oklahoma. Rev. and Mrs. Womack opened the first private "colored" school in Avoyelles Parish. Rev. A.L. Holmes was pastor of...

  • louisiana
  • african-american

St. George Greek Orthodox Church

Designed  by J.P Annan. Built in 1934. Named as a memorial to the St. George Church in New Ephesus, Greece, which was destroyed by the Turks 1917. Congregation founded 1917.

Designed  by J.P Annan. Built in 1934. Named as a memorial to the St. George Church in New Ephesus, Greece, which was destroyed by the Turks 1917. Congregation founded 1917.

  • louisiana
  • church

McNeill Street Pumping Station

National Historic Civil Engineering LandmarkLast operating steam-powered water equipment used in U.S. Provided 106 years of water treatment for Shreveport.Completed 1887  Commemorated 1999.

National Historic Civil Engineering LandmarkLast operating steam-powered water equipment used in U.S. Provided 106 years of water treatment for Shreveport.Completed 1887  Commemorated 1999.

  • louisiana
  • engineering
  • landmark

Last Mountain Lake Bird Sanctuary

LAST MOUNTAIN LAKE BIRD SANCTUARYOn the recommendation of Edgar Dewdney, Lieutenant-Governor of the North-West Territories, this sanctuary was set aside in 1887 for the protection of wildfowl, the...

LAST MOUNTAIN LAKE BIRD SANCTUARYOn the recommendation of Edgar Dewdney, Lieutenant- Governor of the North-West Territories, this sanctuary was set aside in 1887 for the protection of wildfowl,...

  • saskatchewan...

Last Mountain Lake Bird Sanctuary 1887-1987

LAST MOUNTAIN LAKE BIRD SANCTUARY 1997-1987On June 8,1887 the government of Canada "...reserved from sale and settlement, and set apart as breeding grounds for wildfowl..." the islands and parts...

LAST MOUNTAIN LAKE BIRD SANCTUARY 1997-1987On June 8,1887 the government of Canada "...reserved from sale and settlement, and set apart as breeding grounds for wildfowl..." the islands and parts...

  • canada saska...

John and Yoko Fairmont Queen Elizabeth Hotel Montreal 1969

1969Bed-In of John & YokoFrom May 26 to June 2nd, 1969, John Lennon & Yoko Ono made history when they decided to stage their second bed-in for peace in suite 1742 at Fairmont The Queen Elizabeth...

1969Bed-In of John & YokoFrom May 26 to June 2nd, 1969, John Lennon & Yoko Ono made history when they decided to stage their second bed-in for peace in suite 1742 at Fairmont The Queen Elizabeth...

  • beatles
  • lennon
  • yoko
  • montreal
  • bed-in
  • peace

The first tree (victim)

The Tablet marks the spot where John Galt, General Agent of the Canada Company, cut the first tree in founding the city of Guelph, April 23rd 1827Submitted by Paul Mackey 

The Tablet marks the spot where John Galt, General Agent of the Canada Company, cut the first tree in founding the city of Guelph, April 23rd 1827Submitted by Paul Mackey 

  • guelph
  • tree
  • founding
  • city
  • canada
  • ontario

Georg Carstensen

  • tivoli

Lt. Walter R. Heins USN Reserve

LT. WALTER R. HEINS USN RESERVE 1936 - 1967 NEAR THIS SITE ON OCTOBER 4, 1967, U.S. NAVY LT. WALTER R. HEINS EXPERIENCED ENGINE FAILURE IN HIS DOUGLAS A4 ATTACK JET. IN HIS ATTEMPT TO RETURN TO...

LT. WALTER R. HEINS USN RESERVE 1936 - 1967 NEAR THIS SITE ON OCTOBER 4, 1967, U.S. NAVY LT. WALTER R. HEINS EXPERIENCED ENGINE FAILURE IN HIS DOUGLAS A4 ATTACK JET. IN HIS ATTEMPT TO RETURN TO...

    Peter Sellers

    Submitted by@theonlymfkirke.

    Submitted by@theonlymfkirke.

      Amador Pavilion

        The Slinky Toy

        This historic marker memorializes the first manufacturing site of the Slinky, one of the top selling toys of the 20th Century, in Clifton Heights, Pennsylvania. Slinky was invented by mechanical...

        This historic marker memorializes the first manufacturing site of the Slinky, one of the top selling toys of the 20th Century, in Clifton Heights, Pennsylvania. Slinky was invented by mechanical...

        • pennsylvania
        • delaware county
        • slinky
        • toys

        Friends of Noosa

        Friends of Noosa  This plaque records the incredible role played by Friends of  Noosa in the re-establishment Noosa's Council.  Friends of Noosa was a community organisation formed in  2007 to...

        Friends of Noosa  This plaque records the incredible role played by Friends of  Noosa in the re-establishment Noosa's Council.  Friends of Noosa was a community organisation formed in  2007 to...

        • government
        • australia
        • noosa

        Polyhedron with 432 Symmetry

        The polyhedron in the fountain is a snub cube, an Archimedean semi-regular solid derived from a cube, with all its edges of equal length. This shape was chosen for the central fountain in the...

        The polyhedron in the fountain is a snub cube, an Archimedean semi-regular solid derived from a cube, with all its edges of equal length. This shape was chosen for the central fountain in...

        • cal tech
        • science