On which 1981 live album do the performers thank, among others, the Fire Department, and Ed Koch? Braille originated in response to whose demand for a means for soldiers to communicate silently at night and without light? Fifteen of the world's 25 largest hotels (by room number) are in which city? In 1865 Edward Whymper led the first ascent of which mountain? Which magazine, founded in 1922, styles itself the "bible of boxing"? 1995, 2004 and 2013, with settings in, respectively, Vienna, Paris, and Greece. Which film trilogy? Copper and zinc combine to make which alloy? Which descriptive term originated in the art markets of Munich in the 1860s, describing cheap, popular, and marketable works? The Anglo-Saxon kingdom of Mercia was centred on the valley of which river? How many movements of his Unfinished Symphony did Schubert complete?