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

Welcome to the Silver Valley

  Welcome to the Silver Valley More than 1.2 billion ounces of silver have been mined in Idaho’s Silver Valley where once hundreds of mines were actively worked. Today there are just a few active...

  Welcome to the Silver Valley More than 1.2 billion ounces of silver have been mined in Idaho’s Silver Valley where once hundreds of mines were actively worked. Today there are just a few active...

  • idaho
  • silver

Murray Gold Fields

Submitted by Debby Drake.

Submitted by Debby Drake.

  • idaho
  • gold
  • murray
  • eagle city
  • miners
  • shoshone

Mine Deaths -- 43

  • butte
  • montana
  • copper
  • toxic waste
  • berkeley

Southern Gallatin County

THIS BASIN WAS SETTLED BY RANCHERS AND HOMESTEADERS. BANNOCK INDIANS HAD ENCAMPMENTS HERE AS LATE AS 1913. NEAR HERE IS THE WEST ENTRANCE TO YELLOWSTONE PARK, THE NATIONS'S FIRST NATIONAL PARK...

THIS BASIN WAS SETTLED BY RANCHERS AND HOMESTEADERS. BANNOCK INDIANS HAD ENCAMPMENTS HERE AS LATE AS 1913. NEAR HERE IS THE WEST ENTRANCE TO YELLOWSTONE PARK, THE NATIONS'S FIRST NATIONAL PARK...

  • montana

The Boseman Trains

Submitted by Debby Drake.  

Submitted by Debby Drake.

  • bozeman
  • montana
  • gold

A Tough Business

Submitted by Debby Drake. [Location approximate]

Submitted by Debby Drake. [Location approximate]

  • montana
  • traders

Old Patent Office, Washington DC

National Historic Landmark plaque marking the location of the Old Patent Office Building, Washington DC. This was the third public building constructed in Washington DC, after the White House and...

National Historic Landmark plaque marking the location of the Old Patent Office Building, Washington DC. This was the third public building constructed in Washington DC, after the White House and...

  • washington dc
  • patent office
  • smithsonian
  • landmark

Tiananmen Square Memorial Plaque

 IN MEMORY OF  THOSE WHO DIED IN TIENANMEN  SQUARE IN JUNE, 1989   This plaque is virtually invisible until you're standing on top of it, located in the Great Court at the University of...

 IN MEMORY OF  THOSE WHO DIED IN TIENANMEN  SQUARE IN JUNE, 1989   This plaque is virtually invisible until you're standing on top of it, located in the Great Court at the University of...

  • political protest
  • university
  • brisbane

Early Architecture

Submitted by @TBuckwalterLNP

Submitted by @TBuckwalterLNP

  • lancaster
  • pennsylvania

Elijah McCoy

  • the real mccoy
  • oil
  • son of former slaves
  • steam engine

Powder River

Submitted by Debby Drake.    

Submitted by Debby Drake.  

  • powder river
  • gunpowder
  • bighorn
  • yellowstone
  • butch cassidy
  • sundance kid
  • cattle barons
  • bison
  • sheep
  • oil
  • coal
  • air pollution
  • one sixth of...

Minnows and Mud

Submitted by Debby Drake.

Submitted by Debby Drake.

  • wyoming
  • minnows
  • mud
  • powder river
  • whiskers
  • stonecat
  • trout muddy
  • barbles

Little Bighorn "Indian Memorial"

Submitted by Debby Drake.

Submitted by Debby Drake.

  • little bighorn
  • montana
  • custer
  • native americans

Little Bighorn "The Memorial"

THE MEMORIAL  The remains of about 220 soldiers, scouts, and civilians are buried around the base of this memorial.  The white marble headstones scattered over the battlefield denote where the...

THE MEMORIAL  The remains of about 220 soldiers, scouts, and civilians are buried around the base of this memorial.  The white marble headstones scattered over the battlefield denote where...

  • little bighorn
  • montana
  • custer

James Park House

JAMES PARK HOUSE The foundation for this house was laid by Governor John Sevier on a block bought from Knoxville fonder James White in 1979. James Park, pioneer merchant and Knoxville's...

JAMES PARK HOUSE The foundation for this house was laid by Governor John Sevier on a block bought from Knoxville fonder James White in 1979. James Park, pioneer merchant and...

  • knoxville
  • tennessee
  • war work shop
  • red cross

Market House Bell

    Submitted by Rob Sweeney

    Submitted by Rob Sweeney

  • knoxville
  • tennessee
  • belfry
  • wwii
  • tower
  • ritos
  • fires
  • number-based code
  • $640.50

1866 Memphis Massacre

1866 MEMPHIS MASSACRE On May 1, 2 and 3, 1866, mobs of white menled by law enforcement attacked black peoplein the areas near South St. (aka Calhoun & G.E. Patterson). By the end of the attack....

1866 MEMPHIS MASSACRE On May 1, 2 and 3, 1866, mobs of white menled by law enforcement attacked black peoplein the areas near South St. (aka Calhoun & G.E. Patterson). By the end of the attack....

  • memphis
  • tennessee
  • 1886

Gay Street and the Civil Rights Movement

More about Robert J. Booker here Submitted by Rob Sweeney [Location approximate]

More about Robert J. Booker here Submitted by Rob Sweeney [Location approximate]

  • knoxville
  • tennessee
  • civil rights
  • booker
  • robert j booker

Plaque, Hill Street, Belfast

A plaque, on a building in Hill Street J3474 : Hill Street, Belfast (Henry Street on the Google map), at the corner of Gordon Street J3474 : Gordon Street, Belfast recalling the time when the area...

A plaque, on a building in Hill Street J3474 : Hill Street, Belfast (Henry Street on the Google map), at the corner of Gordon Street J3474 : Gordon Street, Belfast recalling the time when the area...

  • geograph

Knox County Courthouse

Submitted by Rob Sweeney

Submitted by Rob Sweeney

  • knoxville
  • tennessee
  • courthouse
  • civil war
  • great locomo...