Rameswaram
The Ramanathaswamy Temple in Rameswaram has the longest temple corridor in the world — 1,219 metres of colonnaded passageways lined with massive sculpted pillars that extend into the distance in perfect geometrical precision. Walking the length of this corridor, hearing your footsteps echo off the ancient stone, is one of the most meditative and architecturally astonishing experiences in all of India. The temple also has 22 sacred wells, each with water of a different taste.
Begin with the Agni Theertham ritual bath in the sea before entering the temple — it is the traditional starting point of the Rameswaram pilgrimage. The 22-well ritual bathing inside the temple (theertham) can be done with a priest's assistance for ₹50–100.