🌟 Must-sees: The 'Kilometer Zero' plaque on the pavement marks the starting point of Spain's radial roads. Stand on this spot and feel the energy of the city center.

Start your day at the bustling heart of Madrid: Puerta del Sol. This central square is a popular meeting point for locals and tourists alike. Admire the historic buildings that surround the square, including the famous Tio Pepe sign and the equestrian statue of King Carlos III. Don't forget to take a photo with the iconic 'Oso y Madroño' statue, which symbolizes the city's coat of arms.

🌟 Must-sees: Admire the beautiful frescoes on the Casa de la Panadería and the equestrian statue of King Philip III in the center of the square.

Walk to the nearby Plaza Mayor, a stunning square lined with elegant, red-brick buildings and bustling cafes. The square has a rich history, having hosted events such as bullfights, markets, and even executions. Today, it's a great place to relax, people-watch, and enjoy a coffee at one of the outdoor terraces.

🌟 Must-sees: Try the Spanish tortilla, croquetas, and olives. Don't forget to taste a glass of refreshing sangria!

Just a short walk from Plaza Mayor is the Mercado de San Miguel, a historic market offering a wide variety of delicious Spanish food. Sample traditional tapas, fresh seafood, and local cheeses, or indulge in some churros with chocolate. The lively atmosphere and beautiful iron-and-glass architecture make it a must-visit spot.

🌟 Must-sees: Visit the monument to King Alfonso XII, which overlooks the lake, and the peaceful Rosaleda rose garden.

Head to El Retiro Park, a beautiful green oasis in the heart of Madrid. Stroll along the tree-lined paths, relax by the lake, or rent a rowboat for a leisurely ride. Don't miss the stunning Crystal Palace, a glass-and-iron structure that hosts temporary art exhibitions.

🌟 Must-sees: Don't miss Velázquez's 'Las Meninas' and Goya's 'The Third of May 1808'. These iconic works are among the most famous in the museum.

Spend the afternoon exploring the Prado Museum, one of the world's most renowned art galleries. The museum houses an extensive collection of European art, with a strong focus on Spanish artists such as Velázquez, Goya, and El Greco. Allow at least a couple of hours to appreciate the masterpieces.

🌟 Must-sees: Try the 'pulpo a la gallega' (Galician-style octopus) and the 'solomillo al whisky' (whisky-marinated sirloin). Pair your meal with a glass of Spanish wine.

Enjoy a well-deserved dinner at Casa Mono, a cozy restaurant offering traditional Spanish cuisine with a modern twist. The menu features a variety of tapas, as well as larger dishes like paella and grilled meats. The warm atmosphere and attentive service make it a perfect spot to end your day.