Chosen for its encompassing fortress-like surrounding of towering limestone formations, Hoa Lu of Ninh Binh in Vietnam once severed as the nation's economic, political, and cultural centre, as well as capital city. Deemed the ideal collecting point for fortification against impending enemy invasions, this ancient capital is so unobtrusively hidden away from the main road that passers by would hardly even think to discover such a vibrant city held within.

Now, largely abandoned, the site serves as a prominent tourist attraction and gathering space for annual festivals and prayer. Though, the charm of this ancient capital city certainly still pervades, as one cannot help but be swept away by the bellowing echo and ominous glare of its mystical enclosure.