While travelling on the ferry that is one portion of the trip from the Lido to Chioggia, I noticed this structure in the waters of the lagoon. What in the world could it be?
It took a bit of research, but I did find out that it is the remains of an “ottagono“, literally octagon, one of several that were used for the defence of Venice. As far as I can determine, it would have been built in the late 14th century.
I also found a real estate advertisement, offering one of the ottagono for sale, with price on application. http://www.landp.it/home-ita/venezia/
(Another advertisement for this island, dated May this year, quoted an asking price of 8 million euro. Gulp)
If you’re in the market for this piece of history, here is a short video featuring the property. Before you sign the contract, will you please ask the real estate agent how they ever managed to acquire the rights to this ottagono.