Today on Homeworthy, one of our favorite hosts, designer Alex Papachristidis, pays a visit to his friend, Elizabeth Pyne Singer, on the Upper East Side of New York. Design runs deep in Elizabeth's family--three generations of women---Elizabeth, her mother and her late grandmother have all worked and helped to shape the revered decorating firm, McMillen Inc., now celebrating its 100th year in business. Today we're touring Elizabeth's stunning apartment which required two years of gut renovations. Now it's a collected jewel box perfect for her young family of four.