A symbol of love and loss, the Taj Mahal stands tall in Agra. But how did it come into being? Here is what you should know ...

These four-square gardens, known as chahar bagh, create large quadrants that are further subdivided into smaller geometric planting beds or lawns (there are 16 at the Taj Mahal, for example).

An immense mausoleum of white marble, built in Agra between 1631 and 1648 by order of the Mughal emperor Shah Jahan in memory of his favourite wife, the Taj Mahal is the jewel of Muslim art in India ...