The above pictures are of the three of seven new wonders of the world. The first picture is of the Coloseum. The Coloseum,
also known as the Flavian Amphitheatre, is an oval amphitheatre in the centre of the city of Rome, Italy. Built of concrete and
sand, it is the largest amphitheatre ever built. Construction began under the emperor Vespasian in AD 72, and was completed
in AD 80 under his successor and heir Titus. Further modifications were made during the reign of Domitian (81–96). The second
picture is of The Great Wall of China. It is a series of fortifications made of stone, brick, tamped earth, wood, and other materials
to protect the Chinese states and empires against their enemies. Several walls were built in the 7th century BC; these, later joined
together and made bigger and stronger, are now collectively referred to as the Great Wall. The third picture is of the Petra. Petra,
originally known to the Nabataeans as Raqmu, is a historical and archaeological city in southern Jordan. The city is famous for its
rock-cut architecture and water conduit system. Another name for Petra is the Rose City due to the colour of the stone out of which
it is carved. Established possibly as early as 312 BC as the capital city of the Arab Nabataeans, it is a symbol of Jordan, as well as
Jordan’s most-visited tourist attraction.

The Great Wall of China is a unique structure that is considered one of the seven wonders of the world. It snakes through the mountains of China for 4,500 miles. Many small walls were constructed by multiple Chinese emperors. Most of these small walls no longer exist as they were reconstructed during the Ming Dynasty, between 1368 and 1644 A.D., while much of the rest of the world was still developing. The Ming Dynasty's rebuilding made it more elaborate with watchtowers and cannons leading the great wall to additional protection of the people. The Great Wall is 25 feet tall and 15-30 feet wide. That's wide enough for two cars to drive on! The facts show many people worked to build the Great Wall of China. Ancient records show that more than 300,000 soldiers and 500,000 commoners worked to build it. That's about the same as the population of San Francisco! Building the wall was hard work. Some of it was in very hot weather and some in the bitter cold. In the earliest stages, builders rammed earth and stone into the walls. But in the Ming Dynasty they used bricks, limestone and tiles, as well.