Interesting. Do you think this because it commemorates the sack of Jerusalem? "Due to the depiction of the destruction of Jerusalem and the desecration of the Temple, Jews refuse to walk underneath the arch to this very day." But are there any flags there? I don't think so.Steven wrote:I'm nearly certain that he's referring to the Arch of Titus.
Or it could be the Arch of Elvira which so inspired Leonard as a young man

But here's an intriguing candidate. In London we have an arch which is actually called Marble Arch and is defined as the very centre of London (all measurements to other cities begin and end here). Furthermore, less than a hundred yards away is a branch of the National Bank of Greece, which is the most likely location for Leonard's famous encounter with the tanned bank-clerk which led him ultimately to Hydra. So he would have known Marble Arch.
And all around Marble Arch are flags ... these days, of the EU nations.