Vigan City Philippines Tour | Walk Tour & CALESA RIDE Around Vigan's Must-Visit Historical Sites! Enjoy this tour in the Historic City of Vigan in Ilocos Sur, Philippines. The entire city of Vigan was declared as a UNESCO World Heritage Site as it is one of the few Spanish colonial towns left in the country. In fact, the city was also noted for being one of the best-preserved example of a planned Spanish colonial town in the entire Asia. Vigan City can be reached both by air and land. It will ta