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

The Ahwahnee

National Historic Landmark designated in 1987 by the National Park Service of the United States Department of the Interior.     

National Historic Landmark designated in 1987 by the National Park Service of the United States Department of the Interior.   

  • hotel
  • national park
  • yosemite

South Point Complex

  SOUTH POINT COMPLEX HAS BEEN DESIGNATED A  REGISTERED NATIONAL HISTORIIC LANDMARK UNDER THE PROVISIONS OF THE HISTORIC SITES ACT OF AUGUST 21, 1955 THIS SITE POSSESSES EXCEPTIONAL VALUE IN...

  SOUTH POINT COMPLEX HAS BEEN DESIGNATED A  REGISTERED NATIONAL HISTORIIC LANDMARK UNDER THE PROVISIONS OF THE HISTORIC SITES ACT OF AUGUST 21, 1955 THIS SITE POSSESSES EXCEPTIONAL VALUE...

  • hawaii

Hiram M. Chittenden Locks

By the Ballard Locks: "Historical Point of Interest Commemorating the 50th anniversary ofthe Hiram M. Chittenden Locks. Dedicated in 1917, the locks have servedboth pleasure and commercial craft...

By the Ballard Locks: "Historical Point of Interest Commemorating the 50th anniversary ofthe Hiram M. Chittenden Locks. Dedicated in 1917, the locks have servedboth pleasure and commercial craft...

  • seattle
  • locks
  • ballard
  • chittenden

General Knox and the Fort Ticonderoga Artillery

"Through this place passedGeneral Henry Knoxin the winter of 1775 - 1776to deliver toGeneral George Washingtonat Cambridge the train of artilleryfrom Fort Ticonderoga used to force the British...

"Through this place passedGeneral Henry Knoxin the winter of 1775 - 1776to deliver toGeneral George Washingtonat Cambridge the train of artilleryfrom Fort Ticonderoga used to force the British...

  • knox
  • revolution
  • washgton
  • cambridge
  • framingham

First National Bank of Paris

"Organized and opened for business at its present location in 1886 by William J. McDonald (1844-1926), Civil War veteran and lawyer. Earler he had opened the Citizens Bank of Clarksville and in...

"Organized and opened for business at its present location in 1886 by William J. McDonald (1844-1926), Civil War veteran and lawyer. Earler he had opened the Citizens Bank of Clarksville and in...

  • paris
  • texas
  • bank

Henry Frank Arcade

"Henry Frank Arcade Historic Site For years people havecome to this spotto see the profile ofPresidentAbraham Lincolnon the mountain Best time to view at sundown" Submitted by @jqmcd  

"Henry Frank Arcade Historic Site For years people havecome to this spotto see the profile ofPresidentAbraham Lincolnon the mountain Best time to view at sundown" Submitted by @jqmcd

  • henry
  • frank
  • arcade
  • lincoln

"S" Bridge II, New Concord, Ohio

S-Bridge Coaches, Conestoga wagons, herds of livestock, pioneers on foot or horseback, peddlers, soldiers, beggars - these and many others have crossed this bridge on the National Road  since...

S-Bridge Coaches, Conestoga wagons, herds of livestock, pioneers on foot or horseback, peddlers, soldiers, beggars - these and many others have crossed this bridge on the National Road  since...

  • ohio
  • bridge
  • fox run
  • new concord
  • sbridge

Coit Tower Semaphore

An unusual and short lived semaphore system at Coit Tower: "During gold rush days a look-out stationed in a structure on this spot observed and signalled the arrival of incoming vessels, by...

An unusual and short lived semaphore system at Coit Tower: "During gold rush days a look-out stationed in a structure on this spot observed and signalled the arrival of incoming vessels,...

  • san francisco
  • tower
  • bay area
  • coit
  • tower

Coit Tower

Coit Tower  This 210 foot monument was built in 1933  with monies bequeathed by Lillie Hitchcock Coit to beautify the city she loved. Frescoes were pointed in the interior of the newly built...

Coit Tower  This 210 foot monument was built in 1933  with monies bequeathed by Lillie Hitchcock Coit to beautify the city she loved. Frescoes were pointed in the interior of the newly built...

  • san francisco
  • tower
  • bay area
  • coit tower

What Cheer House

Site ofWhat Cheer House This is the site of the famouse What Cheer House,a unique hotel opened in 1852 by R. B. Woodwardand destroyed by the fire of 1906. The What Cheer House catered to men only,...

Site ofWhat Cheer House This is the site of the famouse What Cheer House,a unique hotel opened in 1852 by R. B. Woodwardand destroyed by the fire of 1906. The What Cheer House catered to men...

    George Washington Statue, University of Washington

    "Presented to the University of WashingtonJune 14, 1909 by Rainier Chapter Daughtersof the American Revolution. Assisted by thesons and daughters of the American Revolutionby the school children...

    "Presented to the University of WashingtonJune 14, 1909 by Rainier Chapter Daughtersof the American Revolution. Assisted by thesons and daughters of the American Revolutionby the school children...

    • seattle
    • washington
    • george washington
    • statue

    The Golden Fire Hydrant

      "Though the water mains were broken and dry on April 18, 1906 yet from this Greenberg hydrant on the following night there came a stream of water allowing the firemen to save the Mission...

      "Though the water mains were broken and dry on April 18, 1906 yet from this Greenberg hydrant on the following night there came a stream of water allowing the firemen to save the Mission...

    • san francisco
    • fire hydrant
    • bay area
    • fire
    • 1906
    • california

    The Real Linus

    The Real Linus Linus Maurer (son of Nick and Ella) was borned and raised in Sleepy Eye, Minnesota. He spnt four years in the Navy durin World War 2 and then went on tu study art at the Minneapolis...

    The Real Linus Linus Maurer (son of Nick and Ella) was borned and raised in Sleepy Eye, Minnesota. He spnt four years in the Navy durin World War 2 and then went on tu study art at the...

    • linus
    • peanuts
    • schulz

    Western Maryland Station

        Plaque in Gettysburg where Lincoln's train arrived Nov 1863 to deliver Gettysburg Address:   "Western Maryland StationThis is the original station wherePresident Lincoln's train arrived...

        Plaque in Gettysburg where Lincoln's train arrived Nov 1863 to deliver Gettysburg Address:   "Western Maryland StationThis is the original station wherePresident Lincoln's train...

    • lincoln
    • gettysburg
    • train

    John Pool

    Walked across Cape Ann from Gloucester through Dogtown & made sure to stop & #ReadThePlaque before reaching Rockport: "John Pool Here stood the first framed house in Sandy Bay (Rockport) built in...

    Walked across Cape Ann from Gloucester through Dogtown & made sure to stop & #ReadThePlaque before reaching Rockport: "John Pool Here stood the first framed house in Sandy Bay (Rockport) built in...

    • rockport
    • sandy bay
    • long wharf
    • boston

    Quaternion Bridge

    Here as he walked by on the 16th of October 1843 Sir William Rowan Hamilton in a flash of genius discovered the fundamental formula for quaternion multiplication i² = j² = k² = ijk = −1 & cut it...

    Here as he walked by on the 16th of October 1843 Sir William Rowan Hamilton in a flash of genius discovered the fundamental formula for quaternion multiplication i² = j² = k² = ijk = −1 & cut it...

    • math
    • quaternion
    • bridge
    • hamilton
    • dublin
    • ireland

    Most Beautiful Steel Bridge, Class II, 1960

    "American Institute of Steel ConstructionAnnual Award of MeritMost Beautiful Steel Bridge Class II   1960" Submitted by @phillydesign

    "American Institute of Steel ConstructionAnnual Award of MeritMost Beautiful Steel Bridge Class II   1960" Submitted by @phillydesign

    • steel
    • bridge
    • award
    • beautiful

    Mary Todd Lincoln House

    "Mary Todd Lincoln House Buildin 1806 as an inn. Becamehome of politician & businessmanRobert S. Todd in 1832. Mary Todd,his daughter, born in Lexington on Dec. 13, 1818, moved to IL in...

    "Mary Todd Lincoln House Buildin 1806 as an inn. Becamehome of politician & businessmanRobert S. Todd in 1832. Mary Todd,his daughter, born in Lexington on Dec. 13, 1818, moved to IL...

    • lincoln
    • todd
    • mary todd
    • mary todd lincoln

    From Albany to Buffalo

    Erie Canal Heritage Trail  'The Great Embankment'  Completed 1822 is one mile long, 70 feet high across Irondequoit Creek Valley  Pittsford Bicentennial 1989. Submitted by @toddnatti

    Erie Canal Heritage Trail  'The Great Embankment'  Completed 1822 is one mile long, 70 feet high across Irondequoit Creek Valley  Pittsford Bicentennial 1989. Submitted by @toddnatti

    • albany
    • buffalo
    • erie
    • canal
    • embankment
    • creek

    Phillip Burton Wilderness