The Font de Mercuri (Mercury Fountain) is a significant outdoor sculpture by the renowned American artist Alexander Calder. Created in his signature abstract style, the sculpture is characterized by its vibrant red color and dynamic, balanced form. Calder was celebrated for his innovative use of mobiles and stabiles, and the Font de Mercuri embodies this artistic philosophy, appearing to capture a sense of perpetual motion and lightness despite its substantial size. It's a testament to his ability to transform industrial materials into playful, engaging works of art.

The sculpture was a generous gift from Alexander Calder to the Joan Miró Foundation, further solidifying the artistic connection between these two influential 20th-century artists. Its placement in the gardens of the foundation allows it to be appreciated as part of the broader artistic landscape of Montjuïc, offering visitors a moment of artistic contemplation before or after exploring the museum's collections. The interplay of the sculpture with its natural surroundings, the sky, and the architecture of the foundation creates a unique visual experience.

Visitors often remark on the sculpture's striking presence and its ability to evoke a sense of joy and wonder. Its bold form and color make it a popular spot for photographs, and its accessibility means it can be enjoyed by everyone, regardless of whether they are visiting the Joan Miró Foundation itself. The Font de Mercuri stands as a powerful symbol of artistic generosity and the enduring legacy of Alexander Calder's groundbreaking work.