Legend has it that the great Harry Houdini built the world’s first “escape room” 100 years ago inside the Palace of Fine Arts, as a challenge to 8 brilliant innovators, to see if they could escape his contraption filled room within 80 minutes. These innovators — Thomas Edison, Alexander Graham Bell, Henry Ford, Charlie Chaplin, John Philip Sousa, William “Buffalo Bill” Cody, Helen Keller, and Luther Burbank — all participated in the Panama-Pacific International Exposition of 1915 in San Francisco. The room is now open to the general public, available by reservation only. Part mystery, part history, all fun!