2. 569 Lexington Avenue
Who: Marilyn Monroe
What: Famous Photograph
Now: Double Tree Hotel

It’s one of the most famous photographs of Marilyn Monroe ever taken. She’s standing on a subway grate with her white dress blowing up. At the time, this location was the site of the glamorous Loews Theater where Monroe was promoting "The 7 Year Itch". The theater is no more. Today it's a Double Tree Hotel. You’d never know the spot’s legacy, especially considering subway grates are everywhere in The City.