Hidden in the mausoleums of one of New York's cemeteries sits a king's ransom of breathtaking stained glass - commissioned by the city's rich and powerful more than a century ago. Officials at Woodlawn Cemetery first stumbled on the glasswork late last year, in a Gilded Age temple erected for a New York merchant and son of a Spanish general. During an audit of the colorful windows, experts discovered a variety none had ever seen before - despite being seasoned officials on the subject. They are now in the midst of an unprecedented survey that will see them peruse about...