Burj Khalifa

برج خليفة
^ Fully habitable, self-supported, from main entrance to highest structural or architectural top; see the list of tallest buildings in the world for other listings.
Burj Khalifa (Arabic: برج خليفة‎ "Khalifa Tower"),[8] known as Burj Dubai prior to its inauguration, is a skyscraper in Dubai, United Arab Emirates, and is currently the tallest man-made structure ever built, at 828 m (2,717 ft).[8] Construction began on 21 September 2004, with the exterior of the structure completed on 1 October 2009. The building officially opened on 4 January 2010,[1][9] and is part of the new 2 km2 (490-acre) flagship development called Downtown Dubai at the 'First Interchange' along Sheikh Zayed Road, near Dubai's main business district.
The tower's architecture and engineering were performed by Skidmore, Owings, and Merrill of Chicago, with Adrian Smith (now at his own firm) as chief architect, and Bill Baker as chief structural engineer.[10][11] The primary contractor was Samsung C&T of South Korea.[12]
The total cost for the project was about US $1.5 billion; and for the entire "Downtown Dubai" development, US $20 billion.[13] In March 2009, Mohamed Ali Alabbar, chairman of the project's developer, Emaar Properties, said office space pricing at Burj Khalifa reached US $4,000 per sq ft (over US $43,000 per m2) and the Armani Residences, also in Burj Khalifa, sold for US $3,500 per sq ft (over US $37,500 per m2).
The project's completion coincided with the global financial crisis of 2007–2010, and with vast overbuilding in the country, led to high vacancies and foreclosures.[15] With Dubai mired in debt from its huge ambitions, the government was forced to seek multibillion dollar bailouts from its oil rich neighbor Abu Dhabi. Subsequently, in a surprise move at its opening ceremony, the tower was renamed Burj Khalifa, said to honour the UAE President Khalifa bin Zayed Al Nahyan for his crucial support.[16]
Due to the slumping demand in Dubai's property market, the rents in the Burj Khalifa plummeted 40% some ten months after its opening. Out of 900 apartments in the tower around 825 were still empty at that time.

The Old City of Jerusalem

The Old City (Hebrew: העיר העתיקה‎, HaEer HaAtika, Arabic: البلدة القديمة‎, al-Balda al-Qadimah, Armenian: Հին Քաղաք, Hin K'aghak) is a 0.9 square kilometer (0.35 square mile) walled area[3] within the modern city of Jerusalem. Until the 1860s this area constituted the entire city of Jerusalem. The Old City is home to several sites of key religious importance: the Temple Mount and its Western Wall for Jews, the Church of the Holy Sepulchre for Christians, and the Dome of the Rock and al-Aqsa Mosque for Muslims.

Traditionally, the Old City has been divided into four uneven quarters, although the current designations were introduced only in the 19th century.[4] Today, the Old City is roughly divided into the Muslim Quarter, the Christian Quarter, the Jewish Quarter and the Armenian Quarter. Following the 1948 Arab-Israeli War the Old City found itself located entirely on the Jordanian side of the demarcation line. During the Six Day War in 1967, which saw hand to hand fighting on the Temple Mount, Israel occupied the Old City alongside the rest of East Jerusalem.

In 1980, Jordan proposed the Old City to be inscribed on the UNESCO World Heritage Site List. It was added to the List in 1981.[6] In 1982, Jordan requested that it be added to the List of World Heritage Sites in danger.

In 2010, Jerusalem's oldest fragment of writings was found outside of the Old City's walls.

The Grand Canyon

The Grand Canyon is a steep-sided canyon carved by the Colorado River in the United States in the state of Arizona. It is largely contained within the Grand Canyon National Park, one of the first national parks in the United States. President Theodore Roosevelt was a major proponent of preservation of the Grand Canyon area, and visited it on numerous occasions to hunt and enjoy the scenery.


The Grand Canyon is 277 miles (446 km) long, up to 18 miles (29 km) wide and attains a depth of over a mile (1.83 km) (6000 feet).[1] Nearly two billion years of the Earth's geological history have been exposed as the Colorado River and its tributaries cut their channels through layer after layer of rock while the Colorado Plateau was uplifted. While the specific geologic processes and timing that formed the Grand Canyon are the subject of debate by geologists, recent evidence suggests the Colorado River established its course through the canyon at least 17 million years ago. Since that time, the Colorado River continued to erode and form the canyon to the point we see it at today.

Before European immigration, the area was inhabited by Native Americans who built settlements within the canyon and its many caves. The Pueblo people considered the Grand Canyon ("Ongtupqa" in Hopi language) a holy site and made pilgrimages to it. The first European known to have viewed the Grand Canyon was García López de Cárdenas from Spain, who arrived in 1540. 

The Great Wall Of China

The Great Wall of China is a series of stone and earthen fortifications in northern China, built originally to protect the northern borders of the Chinese Empire against intrusions by various nomadic groups. Several walls have been built since the 5th century BC that are referred to collectively as the Great Wall, which has been rebuilt and maintained from the 5th century BC through the 16th century. One of the most famous is the wall built between 220–206 BC by the first Emperor of China, Qin Shi Huang. Little of that wall remains; the majority of the existing wall was built during the Ming Dynasty.

The Great Wall stretches from Shanhaiguan in the east, to Lop Nur in the west, along an arc that roughly delineates the southern edge of Inner Mongolia. The most comprehensive archaeological survey, using advanced technologies, has concluded that the entire Great Wall, with all of its branches, stretches for 8,851.8 km (5,500.3 mi). This is made up of 6,259.6 km (3,889.5 mi) sections of actual wall, 359.7 km (223.5 mi) of trenches and 2,232.5 km (1,387.2 mi) of natural defensive barriers such as hills and rivers.

The Taj Mahal

The Taj Mahal ( /ˈtɑːdʒ məˈhɑːl/;[1] Hindi: ताज महल, from Persian/Urdu: تاج محل "crown of buildings", pronounced [ˈt̪aːdʒ mɛˈɦɛl]; also "the Taj"[2]) is a mausoleum located in Agra, India. It is one of the most recognizable structures in the world.[citation needed] It was built by Mughal emperor Shah Jahan in memory of his third wife, Mumtaz Mahal. It is widely considered as one of the most beautiful buildings in the world and stands as a symbol of eternal love.

Taj Mahal is the finest example of Mughal architecture, a style that combines elements from Persian, Islamic and Indian architectural styles.
In 1983, the Taj Mahal became a UNESCO World Heritage Site. While the white domed marble mausoleum is the most familiar component of the Taj Mahal, it is actually an integrated complex of structures. The construction began around 1632 and was completed around 1653, employing thousands of artisans and craftsmen.[5] The construction of the Taj Mahal was entrusted to a board of architects under imperial supervision, including Abd ul-Karim Ma'mur Khan, Makramat Khan, and Ustad Ahmad Lahauri. Lahauri is generally considered to be the principal designer.