Plaza de Castilla (Castilla Square)

You stand at Plaza de Castilla, a testament to Madrid's dynamic growth and architectural ambition. This isn't the Madrid of centuries past, but a vibrant, forward-looking metropolis, serving as a striking gateway to its northern reaches, where the city truly reaches for the sky. Your gaze is immediately drawn upwards to the KIO Towers, officially known as the Puerta de Europa, or "Door of Europe." These twin skyscrapers, designed by Philip Johnson and John Burgee, dramatically incline at 15 degrees, defying architectural convention. Completed in 1996, they rise 114 meters, each with 26 floors of gleaming glass and steel. As you move around the plaza, notice how their lean appears to shift, sometimes converging, sometimes diverging, creating a captivating optical illusion. The world's first inclined skyscrapers, they were commissioned by the Kuwait Investments Office – hence KIO – a bold symbol of Madrid's international ambition and a frequent backdrop in films. They are not just buildings; they are a visual landmark announcing Madrid's place on the global stage, a constant point of fascination.