Agra Fort

UNESCO World Heritage site located in Agra, Uttar Pradesh, India. It is about 2.5 km northwest of its more famous sister monument, the Taj Mahal. The fort can be more accurately described as a walled city. After the First Battle of Panipat, in 1526 Mughals captured the fort and a vast treasure - which included a diamond later known as the Koh-i-Noor diamond - was seized.Babur stayed in the fort in the palace of Ibrahim and built a baoli (step well) in it. The emperor Humayun was crowned here in 1530. He was defeated in Bilgram in 1540. Sher Shah and his descendants held the fort for fifteen years. In 1555, Humanyun recaptured it for some time when the Hindu king Hem Chandra Vikramaditya defeated his army and captured the fort. Akbar defeated the Hindu King Hemu chanda finally at the Second Battle of Panipat in 1556.

Agra Fort was originally a brick fort, held by the hindu sikarwar Rajputs. It was mentioned for the first time in 1080 AD when a Ghaznavide force captured it. Sikandar Lodi (1488–1517) was the first Sultan of Delhi who shifted to Agra and lived in the fort. He governed the country from here and Agra assumed the importance of the second capital. He died in the fort at 1517 and his son, Ibrahim Lodi, held it for nine years until he was defeated and killed at Panipat in 1526. Several palaces, wells and a mosque were built by him in the fort during his period.

The 94-acre (380,000 m²) fort has a semicircular plan, its chord lies parallel to the river and its walls are seventy feet high. Double ramparts have massive circular bastions at intervals, with battlements, embrasures, machicolations and string courses. Four gates were provided on its four sides, one Khizri gate opening on to the river. It was built circa 1568 both to enhance security and as the king's formal gate, and includes features related to both.

 It is embellished with inlay work in white marble, proof to the richness and power of the Great Mughals. A wooden drawbridge was used to cross the moat and reach the gate from the mainland; inside, an inner gateway called Hathi Pol ("Elephant Gate") - guarded by two life-sized stone elephants with their riders - added another layer of security. 

The site is very important in terms of architectural history. Abul Fazal recorded that five hundred buildings in the beautiful designs ofBengal and Gujarat were built in the fort. Some of them were demolished by Shahjahan to make way for his white marble palaces. Most of the others were destroyed by the British between 1803 and 1862 for raising barracks. Hardly thirty Mughal buildings have survived on the south-eastern side, facing the river. Of these, the Delhi Gate and Akbar Gate and one palace - "Bengali Mahal" - are representativeAkbari buildings.