On the Greek island of Santorini, Gadget checks out the volcanic ruins at Akrotiri and old cliff dwellings in Oia. In Delphi, he investigates the Omphalos, and in Iraklion, Gadget explores some of Crete's treasures. He winds his way through the Matala caves and tastes some Greece's favorite dishes. // In Los Angeles, California, Gadget visits the 45-foot Hollywood sign, Mann's Chinese Theater, and the Hollywood Walk of Fame. Gadget rides the world's smallest railroad and tours the Queen Mary.