Tor San Michele (Rome)

Tor San Michele, also known as Forte San Michele, is a coastal watchtower in Ostia, a frazione of the Municipality of Rome (Italy), rising near the mouth of the Tiber. Built during the 16th century to remedy the deviation of the river following a disastrous flood, it was first used as a customs office and a lookout and defense station, then as a lighthouse for the Ostia Seaplane Base, until it fell into disuse after the end of World War II. The monumental site was completely restored in 2021 and officially reopened to the public.

Building data from Wikidata (CC0); heights normalised. Summary from Wikipedia (CC BY-SA).