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

Discovery of the Sudbury Nickel Deposits

The significance of Sudbury's mineral deposits became apparent during construction of the Canadian Pacific Railway through the area in the 1880s. Blacksmith Tom Flanagan, and others, took samples...

The significance of Sudbury's mineral deposits became apparent during construction of the Canadian Pacific Railway through the area in the 1880s. Blacksmith Tom Flanagan, and others, took samples...

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  • alan brown

Chief Francis Pegahmagabow 1889-1952

Francis Pegahmagabow, an Ojibwe of the Caribou clan, was born in Shawanaga First Nation. He volunteered at the onset of the First World War and served overseas as a scout and sniper with the...

Francis Pegahmagabow, an Ojibwe of the Caribou clan, was born in Shawanaga First Nation. He volunteered at the onset of the First World War and served overseas as a scout and sniper with...

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The Central Emergency Government Headquarters

Irreverently known as the "Diefenbunker," this structure is a powerful symbol of Canada's response to the Cold War. Designed in the 1950s to withstand all but a direct hit by a nuclear weapon, it...

Irreverently known as the "Diefenbunker," this structure is a powerful symbol of Canada's response to the Cold War. Designed in the 1950s to withstand all but a direct hit by a nuclear weapon, it...

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Charles Edward Poulett Thomson Baron Sydenham 1799-1841

Thomson, a British businessman and politician, was sent to North America to implement the Union of the Canadas. Having won assent for the union in 1840, he was elevated to the peerage and served...

Thomson, a British businessman and politician, was sent to North America to implement the Union of the Canadas. Having won assent for the union in 1840, he was elevated to the peerage and served...

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Captain George Fraser Kerr, V.C., M.C., M.M. 1895-1929

Born at Deseronto, Kerr attended schools here and in Toronto. With the outbreak of the First World War he enlisted on September 22, 1914 with the 3rd Battalion, Canadian Expeditionary Force and...

Born at Deseronto, Kerr attended schools here and in Toronto. With the outbreak of the First World War he enlisted on September 22, 1914 with the 3rd Battalion, Canadian Expeditionary Force...

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Catharine Parr Traill 1802-1899

Born in London, Catherine Strickland married Lieutenant Thomas Traill in 1832 and emigrated to Upper Canada, settling in Douro Township and subsequently at Lakefield. A writer of children's...

Born in London, Catherine Strickland married Lieutenant Thomas Traill in 1832 and emigrated to Upper Canada, settling in Douro Township and subsequently at Lakefield. A writer of...

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The Construction of the St. Lawrence Seaway

Impressive for its immense scale, organizational complexity, and speedy completion, the construction of the St. Lawrence Seaway from 1954 to 1959 was an outstanding engineering achievement. This...

Impressive for its immense scale, organizational complexity, and speedy completion, the construction of the St. Lawrence Seaway from 1954 to 1959 was an outstanding engineering achievement. This...

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Campbell's Raid 1814

On May 14, 1814, about 800 American regulars and militia under Lieutenant-Colonel John Campbell disembarked nearby at the mouth of the Lynn River. The following day, meeting no opposition, they...

On May 14, 1814, about 800 American regulars and militia under Lieutenant-Colonel John Campbell disembarked nearby at the mouth of the Lynn River. The following day, meeting no opposition,...

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Christ Church, Her Majesty's Chapel Royal of the Mohawk

This handsome church attests to the remarkable historic alliance of the Mohawk people with the Crown. Loyal Mohawks, who sacrificed much in their support of the British cause, came here after the...

This handsome church attests to the remarkable historic alliance of the Mohawk people with the Crown. Loyal Mohawks, who sacrificed much in their support of the British cause, came here after...

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Colonel Edward Jessup 1735-1816

Born in Stamford, Connecticut, he forfeited 202,000 ha near Albany, New York, by taking up arms for the King on the outbreak of the American Revolution. He raised the Loyal (Jessup's) Rangers and...

Born in Stamford, Connecticut, he forfeited 202,000 ha near Albany, New York, by taking up arms for the King on the outbreak of the American Revolution. He raised the Loyal (Jessup's) Rangers and...

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The Coming of the Mohawks

Commemorating the arrival here on 22nd of May, 1784, under the leadership of Chiefs, John Deserontyou, Aaron Hill, and Isaac Hill, of a band of Loyal Mohawks, one of the Nations of the Iroquois...

Commemorating the arrival here on 22nd of May, 1784, under the leadership of Chiefs, John Deserontyou, Aaron Hill, and Isaac Hill, of a band of Loyal Mohawks, one of the Nations of the Iroquois...

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Charles Mair, 1838-1927

Journalist, poet, advocate of western expansion, and an original member of the Canada First movement, Mair was born at Lanark, Upper Canada. A controversial figure during the Red River uprising...

Journalist, poet, advocate of western expansion, and an original member of the Canada First movement, Mair was born at Lanark, Upper Canada. A controversial figure during the Red River...

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Canada's First Polish Settlement

The first group of Polish immigrants to Canada, some 300 in number, established a settlement in this area in 1864. Adverse social conditions and political unrest in their partitioned homeland had...

The first group of Polish immigrants to Canada, some 300 in number, established a settlement in this area in 1864. Adverse social conditions and political unrest in their partitioned homeland...

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The Commanda General Store

An outstanding example of a High Victorian commercial structure, the Commanda General Store was built and occupied by James Arthurs (1866-1937) about 1885. It was strategically located on the...

An outstanding example of a High Victorian commercial structure, the Commanda General Store was built and occupied by James Arthurs (1866-1937) about 1885. It was strategically located on the...

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Canada's First Telephone Business Office 1877

In 1877 this house, then located in downtown Brantford, became Canada's first telephone business office. It was the residence of the Reverend Thomas Peter Henderson (1816-1887), a former Baptist...

In 1877 this house, then located in downtown Brantford, became Canada's first telephone business office. It was the residence of the Reverend Thomas Peter Henderson (1816-1887), a former Baptist...

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Chief William Yellowhead

Born about 1769, Yellowhead (Musquakle) served with the British during the war of 1812. Named Chief of the Deer tribe of the Chippewa (Ojibwa) Indians in 1816, he settled with his band at the site...

Born about 1769, Yellowhead (Musquakle) served with the British during the war of 1812. Named Chief of the Deer tribe of the Chippewa (Ojibwa) Indians in 1816, he settled with his band at the site...

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Cliff Site

Near this spot, March 23rd, 1670, was erected a cross with arms of France and inscription claiming sovereignty in the name of King Louis XIV over the Lake Erie region, as shown in procés-verbal...

Near this spot, March 23rd, 1670, was erected a cross with arms of France and inscription claiming sovereignty in the name of King Louis XIV over the Lake Erie region, as shown in...

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Claude J.P. Nunney, V.C. 1892-1918

Born in Ireland, Nunney was brought up in Lancaster Township, Glengarry. He enlisted in the 38th Battalion, C.E.F. in 1915 and in 1916 was sent to France where he won the Military Medal and...

Born in Ireland, Nunney was brought up in Lancaster Township, Glengarry. He enlisted in the 38th Battalion, C.E.F. in 1915 and in 1916 was sent to France where he won the Military Medal...

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Capture of the "Anne" 1838

On January 9, 1838, a force of Canadians and Americans sympathizing with Mackenzie's Rebellion, sailed from United States territory and landed on Bois Blanc Island. The schooner "Anne", supporting...

On January 9, 1838, a force of Canadians and Americans sympathizing with Mackenzie's Rebellion, sailed from United States territory and landed on Bois Blanc Island. The schooner "Anne",...

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Champlain's Astrolabe

Nearby was found in 1867 by Edward George Lee an astrolabe bearing the date 1603. This instrument, used for determining latitude, is believed to have been lost by Champlain about 7th June, 1613,...

Nearby was found in 1867 by Edward George Lee an astrolabe bearing the date 1603. This instrument, used for determining latitude, is believed to have been lost by Champlain about 7th June, 1613,...

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