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

Troyville Earthworks (#1)

The 82-foot-tall "Great Mound" of Troyville once stood here. In 1936, Archaeologist Winslow Walker made this diagram, depicting the size and shape of the mound. Today, only 3 feet of mound fill remains.

The 82-foot-tall "Great Mound" of Troyville once stood here. In 1936, Archaeologist Winslow Walker made this diagram, depicting the size and shape of the mound. Today, only 3 feet of mound fill remains.

  • louisiana
  • native american

DePrato Mounds

DePrato has 5 dome-shaped mounds, 3 of which are clearly seen from the road. Flooding has covered the ground and lower portions of the mounds with 2½ feet of sediment. Thus, the mounds appear...

DePrato has 5 dome-shaped mounds, 3 of which are clearly seen from the road. Flooding has covered the ground and lower portions of the mounds with 2½ feet of sediment. Thus, the mounds...

  • louisiana
  • native american

Wirt Adams's Raid

On December 1, 1863, Confederate Brig. Gen. Wirt Adams moved his cavalry from Gallatin to retake Natchez. Finding the city heavily fortified with Union infantry and heavy artillery, Adams moved...

On December 1, 1863, Confederate Brig. Gen. Wirt Adams moved his cavalry from Gallatin to retake Natchez. Finding the city heavily fortified with Union infantry and heavy artillery, Adams...

  • mississippi
  • civil war

Jerry Lee Lewis

Jerry Lee Lewis, aka The Killer, was born in 1935, in Ferriday, LA, where he began playing piano in his youth with his cousins, Mickey Gilley and Jimmy Swaggart. He grew up listening to broadcasts...

Jerry Lee Lewis, aka The Killer, was born in 1935, in Ferriday, LA, where he began playing piano in his youth with his cousins, Mickey Gilley and Jimmy Swaggart. He grew up listening to...

  • louisiana
  • music

Mickey Gilley

For most of his career, Pianist/vocalist Mickey Gilley lived in the shadow of his cousin, Jerry Lee Lewis, playing a similar fusion of country, rock, blues and R&B. In the early '70s, he managed...

For most of his career, Pianist/vocalist Mickey Gilley lived in the shadow of his cousin, Jerry Lee Lewis, playing a similar fusion of country, rock, blues and R&B. In the early '70s, he...

  • louisiana
  • music

Jimmy Lee Swaggart

Go ye into all the world and preach the Gospel to every creature (Mark 16:15) Jimmy Lee Swaggart was born March 15, 1935 in Ferriday, Louisiana. Ministering the Word under the anointing of the...

Go ye into all the world and preach the Gospel to every creature (Mark 16:15) Jimmy Lee Swaggart was born March 15, 1935 in Ferriday, Louisiana. Ministering the Word under the anointing of...

  • louisiana
  • music

Elkhorn Plantation Mound

Elkhorn is a 10-foot-tall platform mound that is 150 by 100 feet at the base. Construction of the mound began around AD 450. Soil studies indicated that dirt was added during a second state of...

Elkhorn is a 10-foot-tall platform mound that is 150 by 100 feet at the base. Construction of the mound began around AD 450. Soil studies indicated that dirt was added during a second state...

  • louisiana
  • native american

Churupa Plantation Mound

Churupa Plantation Mound was built around AD 1000. The mound was constructed in a single episode on top of the remains of an earlier Indian village. Plowing has altered the original conical shape....

Churupa Plantation Mound was built around AD 1000. The mound was constructed in a single episode on top of the remains of an earlier Indian village. Plowing has altered the original conical...

  • louisiana
  • native american

Benjamin Franklin

    Prentice Welsh

      Katz

        Tim Gutler

          San Francisco’s Oldest Bar

            Denver-Boulder turnpike

            The Denver-Boulder Turnpike The Denver-Boulder highway near this marker stands as a memorial to those men of vision who brought it into existence.Planning for such a highway was begun in 1927 by...

            The Denver-Boulder Turnpike The Denver-Boulder highway near this marker stands as a memorial to those men of vision who brought it into existence.Planning for such a highway was begun in 1927 by...

            • highway
            • construction
            • transportation
            • colorado

            Wesley Chesbro Pudding Creek Trestle

            In honor of his commitment to the rehabilitation of this historic rail trestle.  Dedicated on September 26, 2014 He served in the California State Senate 1998-2006 and the California State...

            In honor of his commitment to the rehabilitation of this historic rail trestle.  Dedicated on September 26, 2014 He served in the California State Senate 1998-2006 and the California...

            • fort bragg
            • california
            • mendocino county
            • logging

            Frontier Days in Rawlins County

            Travel is so smooth and effortless today that it is hard to visualize its hazards in the mid-19th century. For example, in June, 1859, four mules pulling a Denver-bound Pike’s Peak Express...

            Travel is so smooth and effortless today that it is hard to visualize its hazards in the mid-19th century. For example, in June, 1859, four mules pulling a Denver-bound Pike’s Peak...

            • kansas
            • atwood
            • rawlins county
            • cheyenne autumn
            • horace greeley

            Roberts/Motte Homesteads and Ranch

            A favorite plaque, because it is so out of the way. This is on the Parkfield Grade, in Fresno County north of the famous hamlet of Parkfield (it's famous because it's one of the most seismically...

            A favorite plaque, because it is so out of the way. This is on the Parkfield Grade, in Fresno County north of the famous hamlet of Parkfield (it's famous because it's one of the most seismically...

            • parkfield
            • california
            • fresno county

            Fort Building

            Plaque text:   Fort Building The last remaining structure and once the original quartermaster’s storehouse and commissary of Fort Bragg military post 1857-1864, then located near Laurel and...

            Plaque text:   Fort Building The last remaining structure and once the original quartermaster’s storehouse and commissary of Fort Bragg military post 1857-1864, then located near Laurel...

            • fort bragg
            • mendocino county
            • california

            Jere Melo

            Not a plaque, exactly, but rather a modest plate on a park bench overlooking the Pacific in Fort Bragg. The text: Dedicated to Jere Melo (1941-2011) Mayor of Fort Bragg and long-time City Council...

            Not a plaque, exactly, but rather a modest plate on a park bench overlooking the Pacific in Fort Bragg. The text: Dedicated to Jere Melo (1941-2011) Mayor of Fort Bragg and long-time City Council...

            • fort bragg
            • mendocino county
            • california
            • crime

            Fort Bragg, CA

            Fort Bragg Established in this vicinity June 11, 1857, by 1st Lieut. Horatio Gate Gibson, 3d Artillery. Later brig. gen. U.S. Army. Named by Gibson in honor of his former company commander,...

            Fort Bragg Established in this vicinity June 11, 1857, by 1st Lieut. Horatio Gate Gibson, 3d Artillery. Later brig. gen. U.S. Army. Named by Gibson in honor of his former company...

            • fort bragg
            • braxton bragg
            • mendocino county
            • california