A 100-year-old railway bridge located in the southern state of Tamil Nadu, Pamban bridge connects Rameswaram island to the mainland. It is not just a railway bridge but a major tourist attraction in Tamil Nadu that leaves travellers awestruck with its scenic beauty. Surrounded by pristine blue waters till as far as your eyes can see, this bridge is 1 metre wide and 2.5km long. Narrowness of this bridge and the beauty around makes your train journey no less than an adventure. With 143 piers, spanning 2km between the mainland and the island, Pamban bridge is the second longest sea bridge in India.