What are must-see spots or experiences would you recommend to someone visiting Madrid for the first time?
For someone coming to Madrid for the first time, I would recommend to check the art galleries calendar in advance. There are always some temporal exhibitions from Spanish painters and many European artists that anyone would definitely enjoy. Then, Museo del Prado is, no doubt, a mandatory to contemplate the Goya ́s and Velazquez ́s paintings and, from El Prado, I would take a short walk to Barrio de las Letras, which is one of the most unique neighbourhoods in Madrid.City Hall, in Plaza de Cibeles, is one of the most beautiful institutional buildings I've ever seen in my life and from there you can easily walk to Parque del Retiro to enjoy a boat ride and visit the Glass Palace. Afternoon is for the Royal Palace and for having some typical spanish food at Mercado de San Miguel, next to Plaza Mayor.