The story
Imagine for a moment that you are not just walking down a wide, paved boulevard in Valencia, but traveling through a dense, intricate forest. Every person you pass, every commuter on a scooter and every shopkeeper opening their door, is carrying a private wilderness inside their head—a landscape of billions of tiny, reaching branches. This is the hidden world that Santiago Ramón y Cajal discovered, and it is why this specific stretch of the city bears his name.
As you walk along the Gran Via de Ramón y Cajal, you are standing on a vital artery of Valencia’s expansion. This street is part of the city’s Great Way, a ring road designed in the nineteenth century to allow the city to breathe and grow beyond its ancient walls. It acts as a bridge, connecting the bustling Plaza de España toward the leafy corridors of the botanical garden area. Today, it is a place of constant movement, lined with tall residential buildings and the characteristic leafy trees that offer a bit of dappled shade against the Mediterranean sun.
But the man the street honors was interested in a different kind of architecture. Santiago Ramón y Cajal, who lived from 1852 to 1934, is often called the father of modern neuroscience. Before he became a Nobel Prize winner in 1906, he lived right here in Valencia. In 1883, he won the chair of Anatomy at the University of Valencia. It was during his years in this city that his obsession with the microscopic world truly took hold. He reportedly bought his first high-quality microscope here, spending his hours staring into the silver-stained slices of brain tissue.
At the time, most scientists believed the brain was a single, continuous web—like a giant, unbroken fishing net. Cajal used his artistic skill to prove them wrong. He drew what he saw with such precision that his sketches are still used today. He showed that our brains are made of individual cells—neurons—that reach out toward each other but never quite touch. He called these cells the butterflies of the soul.
The city named this street after him to celebrate that connection, though the exact date the name was fixed to this specific stretch of the Gran Via is a detail lost to the general passage of urban planning. It remains a tribute to the time he spent walking these same neighborhoods, perhaps pondering the very mysteries that define how you are able to hear and understand my voice right now.
As you continue your walk, take a look at the trees lining the center of the road. Notice how their highest branches reach toward one another across the sky, leaving just a tiny sliver of air between them. It is a perfect, living mirror of the neurons Cajal discovered—always reaching, always communicating, yet always remaining their own unique selves.