World's fairs have typically focused on the wonders of the future, highlighting new technologies from glass and steel construction in the 19th century to satellites and computers today.
But next year's fair is different.
The Japanese organizers of the 2005 World's Fair have shipped an 18,000-year-old frozen woolly mammoth from Siberia to become the centerpiece attraction.
Naoki Suzuki, the Japanese scientist overseeing the Aichi Expo exhibit, said the preserved head, tusks and front leg of the mammoth have arrived in Nagoya near the fair site, about 170 miles west of Tokyo.
Experts say the mammoth head, dug up earlier this year, is the most intact specimen of its kind recovered in 200 years. Scientists will conduct tests in a laboratory with a gallery so visitors can watch.