Minaret:A minaret (Turkish: minare, from Arabic manārah (lighthouse) is a distinctive architectural feature of Islamic mosques, generally a tall spire with an onion-shaped or conical crown, usually either free standing or taller than any associated support structure. The basic form of a minaret includes a base, shaft, and gallery. Styles vary regionally and by period. Minarets provide a visual focal point and are used for the call to prayer (adhan).Soon after the Taj Mahal’s completion, Shah Jahan was deposed by his son Aurangzeb and put under house arrest at nearby Agra Fort. Upon Shah Jahan’s death, Aurangzeb buried him in the mausoleum next to his wife.By the late 19th century, parts of the buildings had fallen badly into disrepair. During the time of the Indian rebellion of 1857, the Taj Mahal was defaced by British soldiers and government officials, who chiselled out precious stones and lapis lazuli from its walls. At the end of the 19th century, British viceroy Lord Curzon ordered a sweeping restoration project, which was completed in 1908. He also commissioned the large lamp in the interior chamber, modelled after one in a Cairomosque. During this time the garden was remodelled with British-style lawns that are still in place today