Ritigala is one of the most archaeologically and atmospherically unusual sites in Sri Lanka – a forest monastery complex built between the 1st and 10th centuries into a mountain ecosystem so biologically distinct it was designated a strict nature reserve. The ruins are unrestored, unguided by signboards and approached through a forest trail where monkeys watch from above. The deliberate strangeness of the architecture, built for solitude rather than display, creates a singular experience.