Originally built as a fortress for a king hiding from his brother, Sigiriya has become one of Sri Lanka's most iconic historical sites. The architecture and planning within Sigiriya are known for being highly developed for its time, the gardens are well maintained, and the frescoes and mirror wall hold much cultural and historical importance. Be warned, however, that the climb to the top is far from easy; some areas require climbing steep stone steps, which may be a challenge for some. The view from the top; the sprawling green landscape of the surrounding city, makes the tough climb worth it.