Pha Nang Khoi Cave

The Pha Nang Khoi Cave, located in the Phrae province of Thailand, is about a mile long with many twists and turns that lead around uniquely shaped stalactites and stalagmites that have been the source of much folklore. 

At the end of the cavern lies a stalagmite that resembles a woman holding a child. In front of that is a stalactite shaped like a heart. A legend says a woman once stood here waiting for her lover to return, and when he he did, she turned to stone. Some say the woman is Princess Aranyani who fled with her child to protect her lover, who was a commoner. 

There are also two colorful Buddha shrines in the cave, which was formed millions of years ago from the limestone in that region. Today the walls are illuminated by multicolored lights which bathe the limestone in bright colors.