Vishnu offers a thousand lotuses and his own eye at Kashi; Rama raises a sand linga at Rameswaram before crossing to Lanka; the full record is I-10 in the interactions file.
On the fourteenth of the bright half of Kartik the Shaiva city keeps Vishnu's devotion to its lord. Vishnu, the story runs, had come to Kashi to offer a thousand lotuses; Shiva hid one, and rather than fall short Vishnu gave an eye, which the poets have always compared to the flower. Shiva returned the eye and gave the Sudarshana. At Kashi Vishwanath on this night each god is offered the other's leaf — tulsi to Shiva, bael to Vishnu — a reversal not allowed on any other day; Maharashtra tells of Shivaji and Jijabai offering a thousand white lotuses, and Rishikesh keeps a festival of lamps.
South India · Rameswaram, Tamil NaduAll traditions
Before crossing to Lanka, the Ramayana's Yuddha Kanda has Rama honour Shiva, and the Shiva Purana says he did so with a linga on the Rameswaram shore. The temple keeps two: the Ramalingam of sand that Rama and Sita made when Hanuman was slow to return from Kailash, and the Vishvalingam Hanuman brought, which on Rama's instruction is worshipped first. Twenty-two wells stand for the arrows in Rama's quiver; the shrine is the southernmost of the twelve jyotirlingas and the southern seat of the Char Dham.
What is different here:
A Vishnu avatar as worshipper of Shiva; a temple charter rather than a Puranic plot.