Alcalá de Henares sits just northeast of Madrid, a compact city where a two-hour walking tour—departing from Pl. de San Diego, 8, 28801 Alcalá de Henares, Madrid, Spain—peels back layers of history laid by Christians, Jews and Muslims. This guided route centers on the Universidad de Alcalá, the Plaza de Cervantes and the long, living spine of Calle Mayor, threading through what were once distinct Jewish, Muslim and Christian quarters. Start at the ornate façade of the Universidad de Alcalá, a Renaissance jewel conceived by Cardinal Cisneros. From there the tour moves into the Plaza de Cervantes, historically the market square, then along Calle Mayor, where plaques and pavement markers point to sites that no longer stand: the heart of the judería, the carnicería de los judíos and traces of the Sinagoga Mayor. The walk continues into the footprint of the old Muslim neighborhood, where memory marks the former mezquita, and finishes bordering the Christian district, with views of the Monasterio de San Bernardo, the Palacio Arzobispal and the Catedral Magistral. What sets this experience apart is the way the city’s stones narrate coexistence. Stonework and façades show Renaissance plaster and mudéjar influences; narrow street plans betray medieval urban patterns; signage and museum fragments expose overlapping civic life. The itinerary makes a point of reading the city: plaques replace vanished buildings, interpretive stops explain commercial systems and everyday spaces, and a guide translates quiet architectural clues into human stories. Practical details matter: the route lasts approximately two hours and is partially accessible—expect some stair sections. Bring comfortable shoes, weather-appropriate outerwear, and a charged phone for photographs and onsite plaques. Minors must be accompanied by an adult; bookings require a minimum of four participants, or the operator will offer a full refund or reschedule. Visitors should follow staff directions (no flash photography, no touching artifacts, avoid protected areas). This tour is a local primer on Spain’s layered past and an accessible way to connect with the origins of modern Alcalá de Henares. It’s ideal for history lovers who want context beyond isolated monuments: you move through streets that reveal commerce, religion and scholarship, all orbiting the Renaissance university. Whether you’re based in Madrid for a day trip or staying in town, this two-hour walk delivers concentrated history, vivid cultural contrasts and a clearer sense of how diverse communities shaped an enduring urban landscape. Plan for photo stops in Calle Mayor’s shaded arcades and at the Plaza de Cervantes where cafés offer rest and local pastries; small groups keep the route conversational and flexible. The tour highlights tangible traces and intangible stories—market records, street names, and masonry clues—that reward attentive walkers and make the two hours feel fuller than the clock suggests.