For our first two years living here we did what every American guidebook does with Belfast, which is give it a half day on the way to somewhere else. Then we spent a week and understood that we had been treating the most interesting city on the island as a rest stop.
Belfast is a working city that spent thirty years being described in headlines and has spent the last twenty rebuilding itself in public. That combination produces something unusual: a place that is genuinely candid about its own history. A black taxi driver will take you along the Falls and the Shankill, tell you which side of it he grew up on, and then tell you the other side of it too. Nowhere else in Ireland offers that.
It is also, practically speaking, the best value luxury in the country. A five star room in Belfast costs what a good four star costs in Dublin, the restaurants are punching well above their reputation, and an hour north the Giant's Causeway and the Antrim Coast Road do everything the Wild Atlantic Way does with a fraction of the traffic.