A visitor touches one of the stone guardian lions  that marshal Kankaimon gate inside the Shuri-jo Castle Park  in Naha, Okinawa Prefecture, Japan, on May 28, 2012. Kankaimon is the front gate of the castle and &quot;kankai&quot;, which means &quot;welcome&quot;, indicates that it was the gate at which visitors, such as Chinese envoys, were greeted upon arrival.