Figures from tourist board Visit England show that last year the iconic Wiltshire attraction had more visitors than the Eden Project in Cornwall.
Over 1m people visited the stone circle in 2010, up 1.9% on the previous year.
It is the first time it has surpassed the Eden Project for visitor numbers since the Cornwall tourist attraction opened in 2001.
David Andrews, chief executive for Visit Wiltshire, said: “Stonehenge is a fabulous site and we’re extremely lucky to have it in the county.”
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Merlin @ Stonehenge
The Stonehenge Stone Circle Website