It may be one of the main cities on the island of Ireland, but Derry still has a village feel. Northern Ireland’s second-largest city after Belfast, the "Walled City" is the only one on the island whose ancient defensive stone walls are completely intact and accessible to pedestrians. Derry’s story is also documented on a series of colorful murals dotted around the city, from its turbulent history through the Troubles and the civil rights movement to the iconic Derry Girls TV show.