Acropolis one of 20 candidates for new 7 wonders of the world

GENEVA, Switzerland - The Great Wall of China, the Colosseum in Rome and Peru's Machu Picchu are leading contenders to be among the new seven wonders of the world, as a massive poll draws to a close with votes already cast by more than 90 million people, organizers say.

As the 8 p.m. voting deadline approaches, the rankings can still change. Also in the top 10 are the Acropolis in Greece, Chichen Itza pyramid in Mexico, Eiffel Tower in Paris, Easter Island, Christ the Redeemer statue in Rio de Janeiro, Brazil, Taj Mahal in India and Jordan's ancient city of Petra.

The winners will be announced on Saturday in Lisbon, Portugal.

The Great Pyramids of Giza are the only surviving structures from the traditional list of seven wonders of the ancient world. That list was derived from lists of marvels compiled by ancient Greek observers, the best known being Antipater of Sidon, a writer in the 2nd century B.C.

The pyramids have been assured of keeping their status in addition to the new seven wonders after indignant Egyptian officials said it was a disgrace they had to compete for a spot.

The final round of the competition narrowed the field to 20 candidates, and people from every country in the world voted by Internet or phone, said the group organizing the ballot.

'It's so exciting,' said Tia B. Viering, spokeswoman for the 'New 7 Wonders of the World' campaign. 'There are not many things that could bring the world together like global culture ... this is really something that every single person in the world can be interested in.'

The Colosseum, the Great Wall, Machu Picchu, Taj Mahal and Petra have been among the leaders since January, while the Acropolis and Christ the Redeemer statue made their way up from the middle of the field to the top level, according to latest tallies.

The Statue of Liberty and Sydney Opera House have been sitting in the bottom 10 since the start. Also faring poorly are Cambodia's Angkor Wat temple complex, Russia's Kremlin building and St. Basil's Cathedral, Britain's Stonehenge and the city of Timbuktu in Mali.