Which word means any building, especially a large or imposing one?

Ants detect odors with sensors on which body parts? Anwar Sadat, who signed a 1979 peace treaty with Israel, was president of which country? In 1981, Anwar Sadat was assassinated during a military parade in which city? Which title, from a Latin word for a Roman high priest, is applied especially to the pope? Which echinoderms make up the class Asteroidea? What term covers any hoofed mammal, whether a hog or a hippo? Which singer had hits with "Any Man of Mine" and "Man! I Feel Like a Woman!"? Which Mongol conqueror's title is usually translated as "universal ruler"?