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July 26, 2026Sources cited
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Washington Monument

The Washington Monument is an obelisk-shaped memorial on the National Mall in Washington, D.C., honoring George Washington, the first president of the United States.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

The Washington Monument is an obelisk-shaped memorial on the National Mall in Washington, D.C., honoring George Washington, the first president of the United States. Completed in 1884 and dedicated in 1885, it is one of the most recognizable landmarks in the United States.

History

The monument was designed in the 1830s by Robert Mills and constructed in two major phases, first from 1848 to 1854 and then from 1876 to 1884. It was officially dedicated on February 21, 1885.

Design and materials

The structure is a tall obelisk made of marble, granite, and bluestone gneiss. Its form was intended to evoke ancient monuments and symbolize national respect for George Washington.

Record-breaking height

At completion, the Washington Monument was the tallest building in the world, standing 555 ft 5⅛ in high. It remains one of the tallest masonry structures and the tallest obelisk in the world.

Location and significance

The monument stands on the National Mall in Washington, D.C., near the centre of the U.S. capital. It is a prominent national symbol and a major tourist site.

Key facts

  • Designed by Robert Mills and completed with later work by Thomas Casey and the U.S. Army Corps of Engineers.
  • Built in two phases, with a long interruption between private and public funding periods.
  • Styled as an Egyptian obelisk, reflecting classical monument traditions.
  • It was the tallest building in the world when completed, at 555 ft 5⅛ in.
  • It remains a major landmark on the National Mall and a memorial to George Washington.
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Canadian context

The Washington Monument is widely recognized by Canadian visitors to Washington, D.C. and appears in North American history and civics education as a major symbol of the United States capital.

Frequently asked questions

What does the Washington Monument commemorate?
It commemorates George Washington, the first president of the United States.
Who designed the Washington Monument?
Robert Mills designed the monument, with later completion work by Thomas Casey and the U.S. Army Corps of Engineers.
When was the Washington Monument completed?
It was completed in 1884 and dedicated on February 21, 1885.
How tall is the Washington Monument?
It is 555 ft 5⅛ in (169.29 m) tall.
What is the Washington Monument made of?
It is made of marble, granite, and bluestone gneiss.
Where is the Washington Monument located?
It is located on the National Mall in Washington, D.C.

References

  1. U.S. National Park Servicehttps://www.nps.gov/wamo/learn/historyculture/index.htm
    Supports: Design, architect, construction phases, purpose, height, and materials.
  2. National Constitution Centerhttps://constitutioncenter.org/blog/10-fascinating-facts-about-the-washington-monument
    Supports: Dedication date.
  3. Encyclopaedia Britannicahttps://www.britannica.com/topic/Washington-Monument-Washington-DC
    Supports: Description, dimensions, materials, height, and world-record status.
  4. U.S. National Park Servicehttps://www.nps.gov/places/000/washington-monument.htm
    Supports: Location and general description as a tribute to George Washington.
  5. American Society of Civil Engineershttps://www.asce.org/about-civil-engineering/history-and-heritage/historic-landmarks/washington-monument
    Supports: Completion history and tallest-structure status upon dedication.
  6. U.S. Government Publishing Officehttps://bensguide.gpo.gov/j-wash-monument
    Supports: Location, purpose, obelisk form, and height.