#16 – Madrid
Madrid is the capital of Spain and with a population of almost 3.2 million people, it’s considered as one of the most beautiful capitals in the world. In addition to Madrid, Barcelona is also another beautiful city in Spain. Madrid is known for the Royal Palace of Madrid as well as the popular football clubs, Real Madrid and Atlético Madrid. Atocha is the largest railway station in Madrid and is worth visiting because this station has a large beautiful indoor garden with plant life and ponds.