There are hundreds of ancient monuments along the route that Sri Rama had taken from Ayodhya to Lanka and bear testimony to His presence even to this day. A photograph by the US Space Agency shows the remains of the ‘Setu’ (bridge) that He built between India and Sri Lanka. Sri Rama’s temples abound in every nook and corner of not only India but also in the whole of Aryavart of yore, which included Indonesia, Thailand, Cambodia, etc.
Darbha Sayanam and Adi Jagannatha Temple
Kale Ram Mandir
For detailed information all the places you can find the resources here