The Taj Mahal is an ivory-white marble mausoleum located on the south bank of the Yamuna river in the Indian city of Agra. As a national symbol of India it is one of the most recognisible buildings in the world. The complex is actually made up of several buildings and gardens extending over 55.5 acres.
It was commissioned in 1632 by the Mughal emperor Shah Jahan to house the tomb of his favourite wife Mumtaz Mahal who died during childbirth. It was designed by Ustad Ahmad Lahauri, and is generally regarded as the best example of Mughal architecture, which is a blend of Indian, Persian and Islamic styles.
The architectural principles the Taj Mahal encapsulates include:
- Rational and strict geometry.
- Perfect symmetrical planning.
- Hierarchical grading of materials, forms and colours.
- Triadic divisions bound together in proportional formulas.
- Uniformity of shapes.
- Sensuous attention to detail.
- Selective use of naturalism.
It was designated as a UNESCO World Heritage Site in 1983, described as 'the jewel of Muslim art in India and one of the universally admired masterpieces of the world's heritage'. It attracts around 7-8 million visitors a year and frequently tops polls listing the world's most admired or beautiful building.
The translucent white Makrana marble tomb of the Taj Mahal is positioned on a square plinth 7 m (23 ft) high. Its four facades are almost identical, each with a wide central arch rising to 33 m (108 ft) at its apex. The central dome is 73 m (240 ft) high and its finial and is surrounded by four smaller domes. Four minarets are positioned on each corner of the square plinth.
The mausoleum interior is organised around an octagonal marble chamber with low-relief carvings and precious stones.
Verses from the Quran are inscribed in calligraphy across many sections of the Taj Mahal, including the soaring arched entrance to the mausoleum. The size of the lettering increases according to its relative height and distance from the observer. This was used as a means of achieving a uniform appearance from the vantage point of the terrace.
The construction process involved 22,000 workers and artisans from all over central Asia and beyond. It is thought that over 1,000 elephants were used to transport building materials. Precious and semi-precious stones inlaid into the white marble include jade and crystal from China, turquoise from Tibet, Lapis lazuli from Afghanistan, sapphire from Sri Lanka, and carnelian from Arabia.
Common legend has it that the emperor had wanted an identical black marble mausoleum to be built in the complex, although this failed to transpire.
Over the centuries, the Taj Mahal was neglected and allowed to fall into disrepair. At the time of the 1857 Indian rebellion, British soldiers and government officials chiseled out many of the precious stones from its walls.
However, at the beginning of the 20th century, a major restoration project was carried out under the direction of the British viceroy of India, Lord Curzon.
The building faced several threats during the 20th century, from Japanese air attacks during the Second World War which prompted the government to disguise it with scaffolding, and from anticipated air attacks during the India-Pakistan wars of 1965 and 1971.
Environmental pollution also became a threat. Air pollution and acid rain caused by nearby factories, oil refineries and traffic was discolouring the marble façade. The Indian government acted by establishing the Taj Trapezium Zone (TTZ), a 4,000 sq. mile area around the complex with strict emissions standards, forcing the closing of some foundries and the banning of motor vehicles.
More recently, the decline in groundwater level in the Yamuna river basin has raised concerns for the tomb's structural integrity. Cracks began to appear in 2010 and the minarets showed signs of tilting, leading to fears that the wooden foundation may be rotting due to water deficit.
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 External references
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