The Montagnola tholos is one of the most important Etruscan monuments of the Orientalizing period in all of northern Etruria.
Explored by Giacomo Caputo in 1959, the tomb stands on the bank of the Zambra River in the Quinto Alto area near Sesto Fiorentino. The tumulus was originally delimited by a drum made up of a row of stones stuck vertically in the ground, of which a large tract remains. It contains a large circular room, a tholos, covered with a pseudo-dome, i.e., with rows of stone slabs arranged in progressively corbelled concentric rings, with a central pillar that does not seem to have had any static function.
The room is accessed through a long corridor, dromos, built with large irregularly squared blocks, arranged in horizontal rows. The first part of the dromos, sloping slightly, is exposed; then, a door delimited by monolithic jambs leads to the covered dromos, along which there are two rectangular cells, also covered with a false vault.