The Tower of Fonollosa Monument · Fonollosa, Bages, Barcelona An 11th-century circular tower, documented since 1033 as a watchtower for the nearby castle of Fals, keeping watch over the road between Fals and Rajadell; 585 centimetres in external diameter and 14.25 metres high, it is today incorporated into a 17th-century farmhouse attached on the south side. Photo: Isidre blanc (CC BY-SA 4.0) What to see and do in Fonollosa