The title of "largest quarry in the world" is a bit tricky, as it depends on how you define "largest." There are different ways to measure quarry size, including:

* Area: Some quarries have immense surface areas, stretching over many acres or even square kilometers.

* Volume of material extracted: Others might be considered largest based on the total amount of rock, gravel, or other material that has been removed over time.

* Depth: Some quarries have reached impressive depths, excavating far below the surface.

While there's no single definitive answer, some contenders for the title of "largest quarry in the world" include:

* The Great Limestone Quarry, China: This quarry, located in the Guizhou province, is estimated to have a surface area of over 10 square kilometers and is known for its immense scale.

* The Diavik Diamond Mine, Canada: This open-pit mine in the Northwest Territories is known for its incredible depth, reaching down over 400 meters. However, it is a diamond mine, not a traditional quarry.

* The Bingham Canyon Mine, USA: While technically an open-pit copper mine, the Bingham Canyon Mine in Utah is an impressive feat of engineering, with a depth of over 1,200 meters and a surface area of over 7.5 square kilometers.

Ultimately, the "largest quarry" depends on your criteria. Each of these locations is impressive in its own right, representing a testament to human engineering and the vastness of our natural resources.