Trang An Eco-tourism Complex, UNESCO's World Heritage Site since June 2014, is a must-visit destination in Ninh Binh.

Covering an area of 1,961 hectares, Trang An is a spectacular landscape of limestone karst peaks and includes three main functional zones: Center area for welcoming visitors and hosting festivals; Grottoes area with 48 grottoes and caves, 31 large and small valleys; and Spiritual cultural area of Bai Dinh Pagoda.

The whole complex is home to 47 historical relics and nearly 100 grottoes stretching around 20km from South to North.