A cyclist rattles along a rudimentary bamboo bridge held up by wooden tree branches in Phulbari, Meghalaya. Such bridges are the most popular form of crossing streams and rivulets in the North east, where bamboo is available in plenty.

A monumental piece of engineering, this spectacular 300 feet cable stayed bridge spans across the Lohit River, in Anjaw district, Arunachal Pradesh.

Cutting across the Great Rann of Kutchh, this bridge connects the island of Dholavira with India. During the monsoons, seawater covers the salt plains, and dries up during the summer months, leaving behind a fresh layer of salt.

Just like during Alexander the Great's campaign in the punjab 2300 years back, a Pontoon Bridge runs across the Ganges connecting Varanasi with Ramnagar, in Uttar Pradesh. Construction of a new bridge takes place next to the pontoon bridge. On the bank across stands Ramnagar Fort, the residence of the Kashi Naresh.

A new suspension bridge being constructed across the thundering Indus River at Basgo, Ladakh.

Named after the iconic Bengali renaissance figure of the 19th century, Vidyasagar Setu in Calcutta, West Bengal, spans across the Hooghly with a total length of 823 metres (2,700 ft), making it the longest cable–stayed bridge in India and one of the longest in Asia.

A steel beam bridge connects the two sides of the Waghora River at the Ajanta Caves, Maharashtra. The hill on the right was the original viewing point from where a British officer of the Madras Presidency, John Smith, while hunting tiger, accidentally discovered the Ajanta Caves on 28th April 1819.

A Truss bridge spans across a river in Peren District, Nagaland.

Tourists take a shortcut to the Daulatabad Fort, Maharashtra via a simple bailey bridge. The original bridge across the crocodile filled moat is seen below. During a siege the water level in the moat would be raised to submerge the bridge, isolating the fort.

A caravan of mules is driven across a simple suspension bridge across the Pin River at the village of Mudh, Pin Valley.

A beam bridge spans across the Bagmati allowing pilgrims access to the Pashupatinath Temple, Kathmandu, Nepal.

A couple is welcomed by langoors at a draw bridge at Gingee Fort, Tamil Nadu. During a siege, the bridge would have been pulled up, cutting off the citadel from the fort.

Popularly known as the Howrah Bridge, the Rabindra Setu is a balanced cantilever bridge that spans the Hooghly River in Calcutta, West Bengal. It successfully bears the weight of a daily traffic of approximately 100,000 vehicles and possibly more than 150,000 pedestrians, easily making it the busiest cantilever bridge in the world.

This natural stone bridge in Mokukchung District, Nagaland contains the footprints preserved on a rock surface, believed to be of Chenna and Etiben – the Romeo and Juliet of the Ao Naga tribe and forms important part of their mythology.

A suspension bridge spans across the mighty Pin River connecting many isolated villages with the main road connecting the Pin Valley to Kaza, the district capital of Spiti Valley in Himachal Pradesh.

A spectacular example of bioengineering, this living root bridge, the longest in the world at 95 feet, spans across a mountain stream in Cherrapunji, Meghalaya. The tree, whose roots are used is the Ficus Elastica, native to the tropical rain forests of the state, and takes around 150 years to be sturdy enough, making it a remarkable example of slow design.

A cable stayed bridge spans across the Narmada with a backdrop of a dam at Omkareshwar, Madhya Pradesh.

An allen truss bridge spans across a waterfall in Uttarey, Sikkim.