Agra is known as the city of Taj Mahal, because Agra is popular all over the world because of the Taj Mahal only. It is a state on the northern state of Uttar Pradesh of India and is located near the River Yamuna. It is the most populated city of Uttar Pradesh with population more than 1.5 million.
As per Mahabharata, Agra was referred as the forest of Agraban, and was founded in the year 1475 during the reign of Raja Badal Singh. However a Persian poet named Mas'udSa'd Salman mentions about Agra in the 11th century. The ancient fort of Agra, Badalgarh, from the reign of Raja Badal Singh should be somewhere near or on the present fort.
In 1506, the capital of India Delhi was moved to Agra by Sultan Sikandar Lodi. After that his son Ibrahim Lodi also used Agra as the capital city. Later on he was defeated by the Persian King Babur. Babur, the founder of the Mughal Empire then sent his son Humayun to capture the city. They not only captured Agra, but also stolen Koh-i-Noor the largest diamond of that time. Under the rule of Mughals, Agra lived its glory days between 1526 and 1658 and it was then called Akbarabad.
Muhgals are inclined towards architecture, and most of the enthralling buildings that we see today belong to the Mughal period between 15th and 16th centuries. Among those buildings three of them are UNESCO World Heritages and they are Taj Mahal, Agra Fort and Fatehpur Sikri.