The classic Egyptian obelisk was a monolith?a single large piece of stone, typically limestone or granite?standing as high as about 100 feet tall and weighing as much as hundreds of tons.

Egyptian obelisks are massive monoliths carved from single blocks of stone, primarily red granite from Aswan. Their weight varies significantly based on their height and era. Smaller obelisks might weigh around 200 to 300 tons, but the most famous examples are far heavier. The Lateran Obelisk in Rome, the tallest standing ancient obelisk, weighs approximately 455 tons. The Unfinished Obelisk, still lying in its quarry in Aswan, provides a glimpse into the true scale of ancient ambition; if completed, it would have stood 42 meters tall and weighed an astounding 1,200 tons—roughly the weight of 200 African elephants. Moving these giants required incredible engineering, utilizing Nile floods and massive barges to transport them from quarries to temple sites hundreds of miles away.