The document presents information about 7 wonders of the world that were elected in 2007 by over 100 million votes. It describes the Colosseum in Rome which could seat 50,000 spectators for gladiator fights. It discusses the Great Wall of China which stretches 7,300 km and was built between the 5th century BC to the 16th century AD to protect China. It also summarizes Machu Picchu in Peru which was an Inca Empire religious sanctuary and palace. Additionally, it provides details about the Taj Mahal in India which took 15 years to complete in honor of the Mughal emperor's wife. The Great Pyramids of Giza in Egypt which were built in 1000-1700 AD as a tomb