Alto-Rilievo, a term designating that species of sculpture in which the figure stands completely out from the ground, being attached to it only in some places, and in others worked entirely round like single statues; such are the metopaa of the Elgin marbles in the British museum. Donatelli's alti-rilievi at Florence are among the most perfect examples of this sort of art. The largest work ever executed in alto-rilievo is that by Algardi in St. Peter's at Rome, representing the repulse of Attila by St. Peter and St. Paul.