Walls of Jesi, Medieval city walls in Iesi, Italy.

The Walls of Jesi are a medieval fortification surrounding the old town center, featuring multiple towers and gates built from local stone. The structure encircles the historic district and shows varying states of preservation across its different sections.

The walls were built from the 13th to 14th century on the line of the older Roman castrum walls, expanded as a symbol of communal freedom. During the Renaissance the Republic of Jesi had them renewed and reinforced against artillery, calling architects Francesco di Giorgio Martini and Baccio Pontelli; the Ghibelline merlons were removed in the 15th century. From the 17th century they lost their defensive role and houses were raised against them.

The walls form part of Jesi's identity and shape how the historic center looks and feels today. Walking along them shows how this fortification defined where people lived and worked within these ancient boundaries.

The walls are accessible from several points around the perimeter, with marked pathways for walking. Exploring them on foot allows you to see all towers and gates while enjoying views of the old town from different angles.

The walls combine defensive requirements with local building techniques that local stone masons perfected over time. This blend of military function and regional craftsmanship makes them a good example of how medieval fortifications adapted to local conditions.