The Spanish are famous for one of their sayings — “La vida es sueño,” or “Life is a dream,” and anyone visiting Madrid in the wintertime can feel the city wrapped in that spellbound wisdom. The capital settles into a gentle slumber during the day, extending the siesta through the long, cool hours, only to sparkle awake again as night falls. If you’re searching for the perfect wedding venues in Madrid, Spain, look no further. Imagine exchanging vows in a glass-enclosed rooftop overlooking…