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

Stumpf's Magic Hoodoo

Established in 1876, John Stumpf's Son Co. manufactured insecticides which aided the successful completion of the Panama Canal. In 1915 "Magic Hoodoo" products received the Medal of Award at the...

Established in 1876, John Stumpf's Son Co. manufactured insecticides which aided the successful completion of the Panama Canal. In 1915 "Magic Hoodoo" products received the Medal of Award at the...

  • louisiana

Mechanickham

Founded in 1836 by Nicholas Noel Destrehan, Mechanickham was originally part of the Spanish land grant to the Ursuline nuns in 1790. It was incorporated with the villages of Gretna and...

Founded in 1836 by Nicholas Noel Destrehan, Mechanickham was originally part of the Spanish land grant to the Ursuline nuns in 1790. It was incorporated with the villages of Gretna...

  • louisiana

Phoenix Iron Works

Approx. 200 feet SW of this site, cast first gun for the Confederate Navy on 4 May 1861. The gun, a Dalhgren cannon, fired an 8~inch diameter explosive shell. Sylvester Bennett was proprietor.

Approx. 200 feet SW of this site, cast first gun for the Confederate Navy on 4 May 1861. The gun, a Dalhgren cannon, fired an 8~inch diameter explosive shell. Sylvester Bennett was proprietor.

  • louisiana
  • civil war

Derbigny Plantation

Home of Pierre A.C.B. Derbigny, 6th Governor of La., 1828~1829, member 1st La. Legislature, La. Secretary of State, La. Supreme Court Judge, Battle of N.O. veteran. 1820 operated 1st steam ferry...

Home of Pierre A.C.B. Derbigny, 6th Governor of La., 1828~1829, member 1st La. Legislature, La. Secretary of State, La. Supreme Court Judge, Battle of N.O. veteran. 1820 operated 1st steam ferry...

  • louisiana
  • new orleans
  • plantation

St. Joseph Gretna

Father T. Anwander, C.SS.R., with agroup of laymen, organized the motherchurch of West Jefferson in 1857.Previously Redemptorists crossingthe Mississippi from the city ofLafayette had served the...

Father T. Anwander, C.SS.R., with agroup of laymen, organized the motherchurch of West Jefferson in 1857.Previously Redemptorists crossingthe Mississippi from the city ofLafayette had served the...

  • louisiana
  • church

Dubreuil Canal

In 1736, Claude Dubreuil initiated a canal at this site, from the Mississippi River to Bayou Barataria. One hundred years BEFORE the Harvey Canal, it was the FIRST man-made waterway accessing New...

In 1736, Claude Dubreuil initiated a canal at this site, from the Mississippi River to Bayou Barataria. One hundred years BEFORE the Harvey Canal, it was the FIRST man-made waterway accessing New...

  • louisiana
  • harvey
  • new orleans
  • westbank
  • waterway
  • canal

St. Alphonsus Church

The first of three great churches built by The Redemptorists for Catholics in the Irish Channel. St. Alphonsus for the Irish, St. Mary's Assumption for the Germans and Notre Dame de bon Secours...

The first of three great churches built by The Redemptorists for Catholics in the Irish Channel. St. Alphonsus for the Irish, St. Mary's Assumption for the Germans and Notre Dame de bon Secours...

    Moore McNamara House

    GARDEN DISTRICT ASSOCIATION MOORE MCNAMARA HOUSE Designed by noted architect Thomas Sully and built in 1892 for Irish-born, prominent banker Robert Moore Sr., this significant Garden District home...

    GARDEN DISTRICT ASSOCIATION MOORE MCNAMARA HOUSE Designed by noted architect Thomas Sully and built in 1892 for Irish-born, prominent banker Robert Moore Sr., this significant Garden District...

    • louisiana
    • new orleans
    • garden district
    • architecture
    • louisiana
    • new orleans
    • garden district
    • robert moore sr.
    • queen anne
    • colonial revival
    • 1892
    • samuel blessing
    • martin kahao
    • joseph hountha
    • 1877
    • 1937

    Sinnott House

      Warren House

        Gouldsboro Rail Car Transfer Ferry

        Ferry operated from 1898 to 1942 with two transfer boats. One, the Gouldsboro, named for railroad magnate Jay Gould, was built in 1863 as the Federal Monitor Chickasaw and saw action at the Battle...

        Ferry operated from 1898 to 1942 with two transfer boats. One, the Gouldsboro, named for railroad magnate Jay Gould, was built in 1863 as the Federal Monitor Chickasaw and saw action at the Battle...

        • louisiana
        • rail

        Brown Residence

          Freret's Folly

          This row of five once identical Greek Revival houses was erected in 1861 by New Orleans architect William A. Freret (1833-1911) as a speculative building project. The row was so-named after the...

          This row of five once identical Greek Revival houses was erected in 1861 by New Orleans architect William A. Freret (1833-1911) as a speculative building project. The row was so-named after the...

          • louisiana
          • new orleans
          • garden district
          • architecture

          McKnight Marinoni Nolan House

          Longtime tradition in the Marinoni-Nolan family holds that this rambling classic revival-style mansion is an early 20th century rebuilding of a mid-19th century center hall cottage. While the...

          Longtime tradition in the Marinoni-Nolan family holds that this rambling classic revival-style mansion is an early 20th century rebuilding of a mid-19th century center hall cottage. While...

          • louisiana
          • new orleans
          • garden district

          Gouldsboro Railcar Transfer Ferry

          This plaque lies in the grass next to a bike path that runs along the “west bank” of the Mississippi River from Algiers Point to Gretna, across the river from New Orleans. The trail is atop the...

          This plaque lies in the grass next to a bike path that runs along the “west bank” of the Mississippi River from Algiers Point to Gretna, across the river from New Orleans. The trail is atop...

          • ferry
          • new orleans
          • railway
          • train

          Freret's Folly / Plessy

            Gilmour – Parker House

            Erected 1853For Thomas Corse Gilmour,English Cotton MerchantIsaac Thayer, Architect-Builder.Sold by Gilmour heirs in 1882To John M. Parker,whose son, John M. Parker, Jr.,lived here and later...

            Erected 1853For Thomas Corse Gilmour,English Cotton MerchantIsaac Thayer, Architect- Builder.Sold by Gilmour heirs in 1882To John M. Parker,whose son, John M. Parker, Jr.,lived here and later...

              U.S. Marine Hospital

              Completed in 1849, this three-story building treatedsailors until abandoned after the 1858 Belle Crevasse.During the War Between the States, gunpowder wasmanufactured at the site and arson was...

              Completed in 1849, this three-story building treatedsailors until abandoned after the 1858 Belle Crevasse.During the War Between the States, gunpowder wasmanufactured at the site and arson was...

              • louisiana
              • civil war
              • hospital

              Colonel Short’s Villa

              Built in 1859 for Colonel Robert H. Short of Kentucky, commission merchant, Henry Howard, architect, Robert Huyghe, builder.In 1832 this property, which was part of the Lavaudais Plantation was...

              Built in 1859 for Colonel Robert H. Short of Kentucky, commission merchant, Henry Howard, architect, Robert Huyghe, builder.In 1832 this property, which was part of the Lavaudais Plantation was...