The New York Times Magazine organized an international competition to design a capsule, which would contain objects documenting life on Earth during the 20th Century, and which would be sealed until the year 3000. Santiago Calatrava's design was selected from 50 competition entries submitted from 15 nations. On December 4, 1999, the American Museum of Natural History opened the special exhibition 'Capturing Time: The New York Times Capsule,' with the object designed by Santiago Calatrava as the centerpiece. (Santiago Calatrava)