From the day it opened, on October 1, 1907, the lavish 19-story French Renaissance building on the southeast corner of Fifth Avenue and Central Park South was simply the grandest hotel in the world. It's no wonder that the Plaza's lavish interiors and exteriors have remained sought-after settings for films, TV shows, commercials--even music videos--as well as home to the most significant social events of their day. It's no surprise that many...