The 1,149-foot Stratosphere Tower, the tallest freestanding observation tower in the U.S. when it opened in 1996, is in which city?

Asuncion is the capital and largest city of which country? Which metal, liquid at room temperature, freezes solid at about -38 degrees Fahrenheit? At about 10,000 feet, the Timberline campus of which state's Mountain College is among the highest in the U.S.? The 1,136-foot Amoco Building, later renamed the Aon Center, stands in which U.S. city? In the last episode of season one of "24," the wife of which character is found dead, shot by Nina Myers? At noon on April 22, 1889, settlers began a rush to claim former Indian land in what is now which state? At 12:03 p.m. on August 9, 1974, who was sworn in as president in the East Room of the White House? At 12,139 feet, Gunnbjorn Fjeld is the highest point on which island, the world's largest?