gibraltar's old town is long and skinny, with one main street. proud bunch, remaining steadfastly loyal to britain. its 30,000 residents vote overwhelmingly to continue as a self-governing british dependency. within a generation, the economy has gone from one dominated by the military to one based on tourism. but it's much more than sunburned brits on holiday. gibraltar is a crossroads community with a jumble of muslims, jews, hindus and italians joining the english and all crowded together at the base of this mighty rock. with its strategic setting, gibraltar has an illustrious military history, and remnants of its martial past are everywhere. the rock is honeycombed with tunnels. many were blasted out by the brits in napoleonic times. during world war two, britain drilled 30 more miles of tunnels. the hundred ton gun is one of many cannon that both protected gibraltar and controlled shipping in the strait. a cable car whisks visitors from downtown to the rock's 1400 foot summit. from the top of the rock, spain's costa del sol arcs eastward and