But most intriguing is the Peace Wall, which separated Protestant unionists and Catholic nationalists during the period of civil unrest known as the &lsquoTroubles&rsquo. Drive down Shankill Road on the Protestant side or Falls Road on the Catholic side to view the political murals lining the wall, from Che Guevara (who apparently had Irish ancestry) to the Red Hand of Ulster, official emblem of the illustrious O&rsquoNeils. We halt for the day&rsquos highlight &mdash the Titanic Walking Tour around Queen&rsquos Island &mdash where shipbuilders Harland & Wolff built the three White Star Liners, the Britannic, Olympic and, most famously, the Titanic. Our guide Ed, a confirmed Titanorak, starts us off in the main offices. We stand in the room where chief draughtsman, Alexander Carlisle, and managing director, Bruce Ismay, had their fateful argument regarding how many lifeboats the Titanic should have. According to popular accounts, Carlisle wanted 64. Ismay thought 64 boats would clutter the decks and decided on just 16. &ldquoBesides,&rdquo Ismay is reported to have argued, &ldquowith Thomas Andrews at the drawing boards, she is practically unsinkable.&rdquo Famously, Carlisle quit that very day, while at the official inquiry later, Ismay denied ever having had the conversation. Belfasters&rsquo response to the disaster &ldquoShe was all right when she left here.&rdquo &ldquoThat&rsquos what comes of giving our ship to an English captain, a Scottish navigator and a Canadian iceberg,&rdquo says Andrew. The Canadians retort that up until 1947, the part of Newfoundland where the Titanic sank belonged to the British so, in fact, it was a British iceberg that did her in.