The bridge of Sant Antoni in La Grella is a mediaeval bridge which formerly was the only way to get to the parish of La Massana.
The bridge passes over the River Valira del Nord and the road continues which connects the parish with Andorra la Vella. It is mediaeval in construction and was remade in the mid-20th century. Near the bridge is the chapel of Sant Antoni de la Grella, originally Romanesque and restored in the 1940s.
More details on the monument, its prices and opening hours in the Culture Guide in pdf format.