Ah, Spain! The land of sunshine, tapas, and bullfighting. But, did you know that it's also home to some of the largest cities in Europe? That's right, Spain is not just a country with beaches and mountains, it also has a booming urban population.

As a detective, I've had the opportunity to travel to Spain, and let me tell you, the cities here are nothing short of amazing. So, let me take you on a journey through the top ten largest cities in Spain.

1. Madrid - This is the capital of Spain and also the largest city in the country. With a population of over 3.3 million, it's no surprise that Madrid is known for its vibrant nightlife, art, and culture.

2. Barcelona - The second-largest city in Spain, Barcelona is known for its stunning architecture, beaches, and the world-famous football club, FC Barcelona. With a population of over 1.6 million, Barcelona is one of the most popular tourist destinations in the world.

3. Valencia - With a population of over 800,000, Valencia is the third-largest city in Spain. It's known for its stunning beaches, museums, and the City of Arts and Sciences, which is a complex of futuristic buildings designed by Santiago Calatrava.

4. Seville - With a population of over 690,000, Seville is the capital of the Andalusia region in southern Spain. Known for its beautiful architecture, rich history, and vibrant flamenco dance, Seville is a must-visit destination in Spain.

5. Zaragoza - With a population of over 670,000, Zaragoza is the fifth-largest city in Spain. It's known for its historic landmarks, such as the Basilica del Pilar and the Aljafería Palace, and is a popular destination for foodies.

6. Malaga - With a population of over 570,000, Malaga is known for its beautiful beaches, rich history, and vibrant nightlife. It's also the birthplace of Pablo Picasso, one of the greatest artists of the 20th century.

7. Murcia - With a population of over 447,000, Murcia is the seventh-largest city in Spain. It's known for its beautiful historic center, stunning beaches, and delicious cuisine.

8. Palma de Mallorca - With a population of over 400,000, Palma de Mallorca is the largest city in the Balearic Islands. It's known for its stunning beaches, crystal-clear waters, and vibrant nightlife.

9. Las Palmas de Gran Canaria - With a population of over 380,000, Las Palmas de Gran Canaria is the largest city in the Canary Islands. It's known for its beautiful beaches, stunning architecture, and warm weather all year round.

10. Bilbao - With a population of over 345,000, Bilbao is the largest city in the Basque Country. It's known for its stunning architecture, such as the Guggenheim Museum Bilbao, and its delicious cuisine.

So, there you have it, the top ten largest cities in Spain. From Madrid to Bilbao, each city has its unique charm and beauty, and they are all worth a visit. Whether you're a foodie, history buff, or beach lover, Spain has something for everyone.