Mausoleum complex on the southern bank of the Yamuna River, outside Agra, India.
It was built by the Mughal emperor Shah Jah 0101; n in memory of his wife, Mumt 0101; z Ma 1E25; al, who died in 1631. The Taj complex, begun 0441; 1632, took 22 years to complete. At its centre lies a square garden area bounded by two smaller, oblong sections, one comprising the mausoleum and the other an entrance gateway. The mausoleum, of pure-white marble inlaid with semiprecious stones, is flanked by two red sandstone buildings, a mosque on one side and an identical building for aesthetic balance on the other. It stands on a high marble plinth with a minaret at each corner. It has four identical facades, each with a massive central arch 108 ft (33 m) high, and is surmounted by a bulbous double dome and four domed kiosks. Its interior, with fine, restrained stone decoration, centres on an octagonal chamber containing the marble tombs, enclosed by a perforated marble screen, with sarcophagi below. Regarded as one of the world's most beautiful buildings, it was designated a UNESCO World Heritage site in 1983. Steps have been taken since the late 1990s to reduce air pollution that has damaged the facade of the building.