Begin your walking tour at Puerta del Sol, the historical heart of Madrid. Learn about its significance as the city’s foundation and how it has evolved over time. Continue to Calle de Alcalá, an axis of power and gradual modernization, and see how it reflects the city’s transformation during the Belle Époque. Next, admire the Edificio Metrópolis, a symbol of planned urban transformation, and stroll along Gran Vía, Madrid’s most famous street, which embodies the city’s shift towards modernity. Discover how these landmarks represent the city’s architectural and urban planning innovations. Visit the Círculo de Bellas Artes, a center of intellectual and cultural life, and learn about its role in shaping Madrid’s cultural scene during the Belle Époque. Finally, head to Parque del Retiro and the Palacio de Cristal, spaces of leisure and social interaction, and see how they reflect the emergence of a modern urban society.