Stonehenge is the only remaining British contender in a global poll to decide the seven wonders of the modern world.

The ancient stone circle on Salisbury Plain, Wiltshire, is among 21 sites nominated from a pool of 77 across the globe.

A worldwide vote is under way before the seven winners are announced on New Year's Day, 2007.

The survey is being run by the New 7 Wonders Foundation, based in Zurich.

While Stonehenge made it through to the final round, all other British landmarks, including St Paul's Cathedral, the London Eye and the Greenwich Observatory, were unsuccessful.

The ancient stone circle, a World Heritage Site, is in the final 21 with the likes of the Sydney Opera House, the Eiffel Tower and Moscow's Kremlin.

The seven wonders of the ancient world were listed by Philon of Byzantium in 200BC.

The sites, all in or near the Mediterranean basin, were essentially a tourist guide for Athenians.

Included was the Great Pyramid of Giza in Egypt, the only ancient wonder still standing.

It has made it into the new shortlist and stands to be among the new seven wonders of the modern world.