The Torre dei Mannelli is a small tower on the southeast corner of the Ponte Vecchio bridge in Florence, Italy. It is the only survivor of the four tower which once defended each corner of the bridge. In 1565, the Mannelli family refused to have it altered or demolished so that the Vasari Corridor (a corridor commissioned by duke Cosimo I de' Medici to join the Uffizi with Palazzo Pitti on the other side of the river) could be built in a straight line. Instead the corridor swerved round it on brackets.
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