1. EMPIRE STATE BUILDING :-

The Empire State Building is a 102-story skyscraper located in Midtown Manhattan,  New York City,  at the intersection of Fifth Avenue and West 34th Street.  It has a roof height           of 1,250 feet (381 meters),  and with its antenna spire included, it stands a total of 1,454 ft (443.2 m) high.Its name is derived from the nickname for New York,  the Empire State . It stood as the world's tallest building for nearly 40 years.. It is also the fourth-tallest freestanding structure in the Americas.

          The Empire State Building is generally thought of as an American cultural icon. It is designed   in the distinctive Art Deco style and has been named as one of the Seven Wonders of the Modern World by the American Society of Civil Engineers.

 

2. KOGOD COURTYARD :-

The Robert and Arlene Kogod Courtyard, a signature element of the renovated Donald W. Reynolds Center for American Art and Portraiture, it is a part of the building houses the Smithsonian's National Portrait Gallery and the Smithsonian American Art Museum

The total cost of renovation for the Donald W. Reynolds Center is $283 million. Federal funds—$166 million—paid for the infrastructure work and historic preservation of the building. Private support totaled $117 million, which includes $63 million for the courtyard enclosure and its interior design ($25 million from Robert and Arlene Kogod and $38 million from private donors).

3. PANAMA CANAL :-

The Panama Canal  is a 77.1-kilometre (48 mi) ship canal in Panama that connects the Atlantic Ocean (via the Caribbean Sea) to the Pacific Ocean. The canal cuts across the Isthmus of Panama and is a key conduit for international maritime trade. There are locks at each end to lift ships up to Gatun Lake, an artificial lake created to reduce the amount of excavation work required for the canal, 26 metres (85 ft) above sea level. The current locks are 33.5 metres (110 ft) wide. A third, wider lane of locks is currently under construction and is due to open in 2015.

Annual traffic has risen from about 1,000 ships when the canal opened in 1914, to 14,702 vessels in 2008, the latter measuring a total of 309.6 million Panama Canal/Universal Measurement System (PC/UMS) tons. By 2008, more than 815,000 vessels had passed through the canal, many of them much larger than the original planners could have envisioned; the largest ships that can transit the canal today are called Panamax. The American Society of Civil Engineers has named the Panama Canal one of the seven wonders of the modern world.

4. RED RIBBON ,CHINA :-

The Red Ribbon - Tanghe River Park, Qinhuangdao City, Hebei Province, China

The red ribbon and one of the four pavilions, each of which is named after a native grass species, and is integrated with environmental interpretative design.

The red ribbon along the river with minimal disturbance to the native vegetation. Animal crossings are built into the ribbon for small animals. A formerly inaccessible waterfront becomes an attraction to the nearby residents.

5. HOOVER DAM :-

          Hoover Dam, once known as Boulder Dam, is a concrete arch-gravity dam in the Black Canyon of the Colorado River, on the border between the US states of Arizona and Nevada. It was constructed between 1931 and 1936 during the Great Depression and was dedicated on September 30, 1935, by President Franklin D. Roosevelt. Its construction was the result of a massive effort involving thousands of workers, and cost over one hundred lives. The dam was controversially named after President Herbert Hoover.

            Hoover Dam impounds Lake Mead, the largest reservoir in the United States by volume.  The dam's generators provide power for public and private utilities in Nevada, Arizona, and California. Hoover Dam is a major tourist attraction; nearly a million people tour the dam each year. Heavily travelled U.S. 93 ran along the dam's crest until October 2010, when the Hoover Dam Bypass opened.

6. THE CHANNEL TUNNEL, EUROPE :-

         The Channel Tunnelis a 50.5-kilometre (31.4 mi) undersea rail tunnel linking Folkestone, Kent, in the United Kingdom with Coquelles, Pas-de-Calais, near Calais in northern France beneath the English Channel at the Strait of Dover. At its lowest point, it is 75 m (250 ft) deep. At 37.9 kilometres (23.5 mi), the Channel Tunnel possesses the longest undersea portion of any tunnel in the world, although theSeikan Tunnel in Japan is both longer overall at 53.85 kilometres (33.46 mi) and deeper at 240 metres (790 ft) below sea level.

         The tunnel carries high-speed Eurostar passenger trains, Eurotunnel Shuttle roll-on/roll-off vehicle transport the largest in the world and international rail freight trains.The tunnel connects end-to-end with the LGV Nord and High Speed 1high-speed railway lines.

7. CN TOWER :-

The CN Tower  is a 553.33 m-high (1,815.4 ft) concrete communications and observation tower in Downtown Toronto, Ontario, Canada. Built on the former Railway Lands, it was completed in 1976, becoming theworld'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 in 2010. 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. 

In 1995, the CN Tower was declared one of the modern Seven Wonders of the World by the American Society of Civil Engineers. It also belongs to the World Federation of Great Towers, where it holds second-place ranking

8. GOLDEN GATE BRIDGE :-

The Golden Gate Bridge is a suspension bridge spanning the Golden Gate strait, the mile-wide three mile long channel between San Francisco Bay and the Pacific Ocean. The structure links the U.S. city of San Francisco, on the northern tip of the San Francisco Peninsula, to Marin County. It is one of the most internationally recognized symbols of San Francisco, California, and the United States. It has been declared one of the Wonders of the Modern World by the American Society of Civil Engineers.

The Frommers travel guide considers the Golden Gate Bridge "possibly the most beautiful, certainly the most photographed, bridge in the world". It opened in 1937 and had until 1964 the longest suspension bridge main span in the world, at 4,200 feet (1,280 m).

          
  9. SOLOMON R. GUGGENHEIM MUSEUM:-

           The Solomon R. Guggenheim Museum is a well-known art museum located on the Upper East Side of Manhattan in New York City. It is the permanent home of a renowned and continuously expanding collection of Impressionist, Post-Impressionist, early Modern and contemporary art and also features special exhibitions throughout the year. The museum was established by the Solomon R. Guggenheim Foundation in 1939 as the Museum of Non-Objective Painting, under the guidance of its first director, the artist Hilla von Rebay. It adopted its current name after the death of its founder, Solomon R. Guggenheim, in 1952.

Designed by Frank Lloyd Wright, the cylindrical museum building, wider at the top than the bottom, was conceived as a "temple of the spirit" and is one of the 20th century's most important architectural landmarks. . The museum's collection has grown organically, over eight decades, and is founded upon several important private collections, beginning with Solomon R. Guggenheim's original collection. 

                      10. BURJ DUBAI :-


          Burj Khalifa known as Burj Dubai prior to its inauguration, is a skyscraper in Dubai, United Arab Emirates, and is the tallest man-made structure in the world, at 829.8 m (2,722 ft).

             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, and is part of the new 2 km² (490-acre) 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 as chief architect, and Bill Bakeras chief structural engineer. The primary contractor was Samsung C&T of South Korea.

               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). He estimated the total cost for the project to be about US$1.5 billion.

               THESE ARE THE MOST BEAUTIFUL STRUCTURES IN OUR WORLD. IN ALL THESE A NEW TECHNOLOGIES & ADVANCED METHODS & MODERN ARCHITECTURE SKILLS & PLANNING ARE USED .
                 I TRIED TO GIVE YOU A KNOWLEDGE OF THESE ARCHITECTURAL SITES ,AS MUCH I CAN ! ! ! ! ! ! ! ! ! ! !