Cobblestone is a natural building material based on cobble-sized stones, and is used for pavement roads, streets, and buildings.
Cobblestones on a road surface in Imola, Italy.
Italian cobblestone-covered street in Isola Bella. Cobblestones such as these are designed for horses to get a good grip.
A cobblestone lane in the Old Town (Senamiestis) in Kaunas.
The Alexander Classical School three-story cobblestone building in Alexander, New York.
A cobble is a clast of rock defined on the Udden–Wentworth scale as having a particle size of 64–256 millimeters (2.5–10.1 in), larger than a pebble and smaller than a boulder. Other scales define a cobble's size differently. A rock made predominantly of cobbles is termed a conglomerate. Cobblestone is a building material based on cobbles.
Beach cobbles (Nash Point, Wales)
Sandy conglomerate with cobbles in the Hazeva Formation (Miocene) of southern Israel