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■ ■ The Taj Mahal in Agra, India

Words to Understand

Great Wall of China: A series of walls and fortifications in China that stretch approximately 13,170 miles (21,196 kilometers), although portions are gone or are in ruins. It was first constructed 2,700 years ago, and it is a top tourist destination and one of the greatest wonders of the world. historical landmarks: Buildings or other structures that are protected under law because they have special value because of historical, cultural, or other factors. self-employed: Working for oneself as a small business owner, rather than for a corporation or other employer. Self-employed people must generate their own income, and they must provide their own fringe benefits (such as health insurance). Taj Mahal: An immense and beautiful mausoleum (tomb) in India that was constructed out of white marble between 1631 and 1648 A.D. by order of the Mughal emperor Shah Jahan in memory of his favorite wife, Mumtaz Maha.