Given the sensibilities of the theocratic Iranian regime, Italian authorities decided to conceal some of the more perhaps offending artworks during Rouhani's visit. Plywood boxes and panels were placed around the objects to obscure them from the Iranian president's vision, or at least in photo-ops.
In accordance with protocols governing visits by Muslim dignitaries, alcohol was not served at a dinner hosted in Rouhani's honor. As my colleague Anthony Faiola noted last year, the Iranians apparently did not receive similar dispensation during an earlier visit to France, whose government balked at the notion of hosting an official dinner without wine.
On Tuesday, Rouhani also visited the Vatican and held meetings with Pope Francis. The pair discussed their "shared spiritual values" and exchanged gifts.
As you can see by comparing the official photo above and the spoof photo below, the Internet decided to have a little fun at Rouhani's expense.