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Famous Buildings

Burj Dubai

Burj Dubai is a skyscraper currently under construction in the city of Dubai in the UAE, which, upon completion, will be the tallest structure ever built by humans. On July 21, 2007, as announced by the sponsoring company, Emaar Properties, the Dubai Tower broke the record held by the tall Taipei 101. On January 17, 2009, apparently, the Burj Dubai has reached its maximum altitude -818 meters, information that is confirmed by an article on the internet. However, the promoter has not confirmed this event.

At first, the Burj Dubai would have the name "Tower Groll", measuring 570 meters, enough to make it the world's tallest building, and would be placed in Australia. The shape of the skyscrapers had nothing with the current design. He would take the form of a prism with a lighted tip.

Pyramid of Menkaure

The Pyramid of Menkaure, also known as the Pyramid of Mycerinus, located on the Giza Plateau in the southwestern outskirts of Cairo, Egypt, is the smallest of the three Pyramids of Giza. It was built to serve as the tomb of the fourth dynasty Egyptian Pharaoh Menkaure.

Menkaura's Pyramid had an original height of 65.5 metres (218 feet) and was the smallest of the three major pyramids at the Giza Necropolis. It now stands at 61 m (204 ft) tall with a base of 108.5 m. Its angle of incline is approximately 51°20?25?. It was constructed of limestone and granite. The first sixteen courses of the exterior were made of granite. The upper portion was cased in the normal manner with Tura limestone. Part of the granite was left in the rough. Incomplete projects like this help archeologists understand the methods used to build pyramids and temples. South of the pyramid of Menkaure were 3 satellite pyramids none of which appear to have been completed. The largest was made partly in granite like the main pyramid. Neither of the other 2 progressed beyond the construction of the inner core.

Trans-Atlantic tunnel

Trans-Atlantic tunnel is a theoretical tunnel under the Atlantic between Europe (London) and North America (New York), so the two continents together to connect. The tunnel would use magnetic levitation trains. With advanced technologies, it speeds will be from 500 to 8.000 km/h.

Plans for a tunnel as they are never touched the conceptual phase, and no one currently pursues this project. The most common route is that between the United States and the United Kingdom, or, more specifically, New York and London. The main obstacles to building such a tunnel are the costs - possibly $12 trillion - and the limits of current knowledge of materials. Even if existing large tunnels, such as the Channel Tunnel and Seikantunnel, less advanced technology than any trans-Atlantic tunnel. The price remains the biggest breaker. A trans-Atlantic tunnel is about 200 times longer than the longest current tunnel and would be 3000 times as much as costs.

CN Tower

The CN Tower is a communications and observation tower in Downtown Toronto, Ontario, Canada. Standing 553.33 metres (1,815.4 ft) tall, it was completed in 1976, becoming the world's tallest free-standing structure and world's tallest tower at the time. It held both records for 34 years until the completion of Burj Khalifa and Canton Tower. It remains the tallest free-standing structure in the Western Hemisphere, a signature icon of Toronto's skyline, and a symbol of Canada, attracting more than two million international visitors annually.

Its name "CN" originally referred to Canadian National, the railway company that built the tower. Following the railway's decision to divest non-core freight railway assets, prior to the company's privatization in 1995, it transferred the tower to the Canada Lands Company, a federal Crown corporation responsible for real estate development. Since the name CN Tower became common in daily usage, the abbreviation was eventually expanded to Canadian National Tower or Canada's National Tower. However, neither of these names is commonly used.

Pyramid of Khafre

The Pyramid of Khafre, also known as the Pyramid of Chefren, is the second-largest of the Ancient Egyptian Pyramids of Giza and the tomb of the fourth-dynasty pharaoh Khafre (Chephren).
The pyramid has a base length of 215.5 m and rises to a height of 136.4 metres (originally 143.5 m). The Pyramid is made of Limestone blocks (weighing more than 2 tons each).

The pyramid was likely opened and robbed during the First Intermediate Period. During the 18th dynasty the overseer of temple construction robbed casing stone from it to build a temple in Heliopolis on Rameses II’s orders. Arab historian Ibn Abd as-Salaam recorded that the pyramid was opened in 1372. It was first explored in modern time by Giovanni Belzoni on March 2, 1818 and the first complete exploration was conducted by John Perring in 1837.

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