What to see in Madrid??? Spending Christmas in Madrid

#WinterTravel This is my third visit to Spain, but it's my first time in winter. Madrid doesn't have the long history and exotic charm of southern Spain, nor the variety of things to see or eat like Barcelona, ​​but it's a city with the wonderful Prado Museum, Regina Sofia Museum, and Thyssen Museum. You can see Picasso's Guernica and countless other masterpieces by Goya, Dali, and Velazquez. There are also many attractive nearby cities like Segovia and Toledo. There's also the wonderful Retiro Park, the Royal Palace, the Cathedral, and many delicious restaurants. I was busy enjoying the wonderful Madrid for 4 nights and 5 days. I also recommend going up to the RIU rooftop, which is popular these days. The night view is 360 degrees (10 euros per person, paid rooftop). The night view is the best ~