Independence coupled with the rapid economic growth from the 1970s to the 1990s and with Islam being the official religion in the country, has resulted in the construction of buildings with a more local and Islamic flavour arise around the city. Many of these buildings derive their design from traditional Malay items such as the songkok and the keris. Some of these buildings have Islamic geometric motifs integrated with the designs of the building, signifying Islamic restriction on imitating nature through drawings. Examples of these buildings are Telekom Tower, Maybank Tower, Dayabumi Complex, and the Islamic Centre. Some buildings such as the Islamic Arts Museum Malaysia and National Planetarium have been built to masquerade as a place of worship, complete with dome and minaret, when in fact it is a place of science and knowledge. The  tall Petronas Towers are the tallest twin buildings in the world and the tallest buildings in the country. They were designed to resemble motifs found in Islamic art.