August 9, 2007—"What historic site was carved from sandstone in about 1200 B.C.? This site includes two huge temples and statues of an ancient ruler."

That's the question that gave three students from Mexico victory over teams from Canada and the United States in the final round of the eighth National Geographic World Championship, a biennial contest of geography knowledge. Fourteen other international teams competed in the event, which has been held since 1993.

Ángel Aliseda-Alonso, 16, Carlos Elías Franco-Ruiz, 14, and Emanuel Johansen-Campos, 15, answered correctly to unseat five-time champ the United States, snaring the first-ever win for Mexico.

Watch as TV's "Jeopardy" host Alex Trebek moderates during the final round at SeaWorld San Diego, and find out if you can correctly answer the question that won Mexico the gold.