Can you think of anything more delightful than a glamorous Manhattan townhouse at Christmas? What if it was painted in shades of Tiffany blue, and was home to a delicious family of gorgeous jewelry? Tiffany & Co. unveiled its beautiful holiday windows yesterday, dreamy dollhouse scenes featuring sparkling gems perched on the tiny furniture. Leaving aside the fact that this graceful home looks like it's from the pages of Architectural Digest, I hasten to remind everyone that it is miniature! Tiffany windows measure a teensy-weensy 24 inches across. And are filled with diamonds! This is absolutely heart-stopping.