Interesting to know - Wonders of the World 
Read about new 7 Wonders of Architecture World

Now a days voting is going on for selection of the seven wonders of the world. It is interesting to know about its details.
See their complete list on http://wonderclub.com/AllWorldWonders.html

The original 7 wonders were selected by Philon of Byzantium in 200 BC and were located around the Mediterranean basin. Since six of the seven are destroyed, there has been several attempts to update the list. Result of the poll will be announced on July 7, 2007 in Lisbon, Portugal.

The Seven Wonders of the Ancient World (Nature Made)
The Great Pyramids (Giza, Egypt)
The Hanging Gardens of Babylon (Iraq)
    The hanging gardens are said to have stood on the banks of the Euphrates River in modern-day Iraq, although there's some doubt as to whether they ever really existed. The Babylonian king Nebuchadnezzar II supposedly created the terraced gardens around 600 B.C. at his royal palace in the Mesopotamian desert. It is said the gardens were made to please the king's wife, who missed the lush greenery of her homeland in the Medes (now northern Iran). Archaeologists have yet to agree on the likely site of the hanging gardens, but findings in the region that could be its remains include the foundations of a palace and a nearby vaulted building with an irrigation well. The most detailed description is given by Greek historians, but the ancient Babylonian records do not mention them.
The Temple of Artemis at Ephasus
The Statue of Zeus (Olympia, Greece)
    The massive gold statue of the king of the Greek gods was built in honor of the original Olympic games, which began in the ancient city of Olympia. The statue, completed by the classical sculptor Phidias around 432 B.C., sat on a jewel-encrusted wooden throne inside a temple overlooking the city. The 40-foot-tall (12-meter-tall) figure held a scepter in one hand and a small statue of the goddess of victory, Nike, in the other—both made from ivory and precious metals. The temple was closed when the Olympics were banned as a pagan practice in A.D. 391, after Christianity became the official religion of the Roman Empire. The statue was eventually destroyed, although historians debate whether it perished with the temple or was moved to Constantinople (now Istanbul) in Turkey and burned in a fire.
The Mausoleum at Helicarnassus
    The famous tomb at Halicarnassus—now the city of Bodrum—was built between 370 and 350 BC for King Mausolus of Caria, a region in the southwest of modern Turkey. It is said that the king's grieving wife Artemisia II had the tomb constructed as a memorial to their love. Mausolus was a governor in the Persian Empire, and his fabled tomb is the source of the word "mausoleum." The structure measured 120 feet (40 m) long and 140 feet (45 m) tall. The tomb was most admired for its architectural beauty and splendor. The central burial chamber was decorated in gold, while the exterior was adorned with ornate stone friezes. The sculptures were created by four Greek artists. The mausoleum stood intact until the early 15th century, when Christian Crusaders dismantled it for building material for a new castle. Some of the sculptures and frieze sections survived and can be seen today at the British Museum in London, England.
The Colossus of Rhodes
The Pharos of Alexandria (Egypt)
    The lighthouse was the only ancient wonder that had a practical use. It served as a beacon for ships in the dangerous waters off the Egyptian port city of Alexandria, now called El Iskandariya. It was built  on the small island of Pharos between 285 and 247 BC. It remained the tallest building in the world for many centuries. Its estimated height was 384 feet (117 m)—equivalent to a modern 40-story building—though some people believe it was significantly taller than this. The lighthouse was operated using fire at night and polished bronze mirrors that reflected the sun during the day. It's said that the light could be seen for more than 35 miles (50 kms) out to sea. The huge structure towered over the Mediterranean coast for more than 1,500 years before it was seriously damaged by earthquakes in AD 1303 and 1323.

Only the Pyramids are now with us.

The Seven Wonders of Medieval Mind
Stonehenge
The Colosseum (Rome, Italy)
The Catacombs of Kom el Shoqafa
The Great Wall of China (China)
The Porcelain Tower of Nanjing
The Hagia Sofia
The Leaning Tower of Pissa (Italy)

New7Wonders Foundation (A Swiss Non-profit Organization) - July 7, 2007
Founder - Bernard Weber
The new 7 wonders of the world have to be man-made in acceptable state of preservation and be of artistic or architectural value. The following 7 wonders were chose by this organization based on the public poll. Although it doesn't seem to be the right way to declare them as 7 wonders of he world, but, however these are the 7 wonders declared by it on July 7, 2007 (7/7/7).

Christ the Redeemer statue (Rio de Janeiro, Brazil)
    The 105-foot-tall (38 m) statue
Colosseum (Rome, Italy)
    The only finalist from Europe to make it into the top seven—the Colosseum in Rome, Italy—once held up to 50,000 spectators
      who came to watch the gory games involving gladiators, wild animals, and prisoners. Construction began around AD 70 under
      the Emperor Vespasian. Modern sports stadiums still resemble the Colosseum's famous design. European sites that didn't
      make the cut include Stonehenge (the United Kingdom), the Acropolis (Athens, Greece), and the Eiffel Tower ( Paris, France).
Taaj Mahal (Aagaraa, India)
    The Taaj Mahal, located in Aagaraa, India, is the spectacular mausoleum built by Muslim Mugal Emperor Shaah Jahaan in
      the memory of his beloved late wife, Mumtaaz Mahal. It was constructed in about 15 years. It was started in 1632. It is
      generally regarded as the finest example of Mugal art and architecture. It includes four minarets, each more than 13
      stories tall.
The Great Wall of China (China)
    This wonder of the world was built along China's northern border over many centuries to keep out invading Mongol tribes.
      Constructed between the fifth century B.C. and the 16th century, the Great Wall is the world's longest human-made
      structure, stretching some 4,000 miles (6,400 kilometers). The best known section was built around 200 B.C. by the first
      emperor of China, Qin Shi Huang Di.
The Ancient city of Petra (Jordan)
    Located on the edge of the Arabian Desert, Petra was the capital of the Nabataean kingdom of King Aretas IV (9 B.C. to
     A.D. 40). Petra is famous for its many stone structures such as a 138-foot-tall (42 m) temple carved with classical facades
     into rose-colored rock. The ancient city also included tunnels, water chambers, and an amphitheater, which held 4,000
     people. The desert site wasn't known to the West until Swiss explorer Johann Ludwig Burckhardt came across it in 1812.
The Inca ruins of Machu Picchu (Peru),  and
    One of three successful candidates from Latin America, Machu Picchu is a 15th-century mountain settlement in the Amazon
     region of Peru. This ruined city is among the best known remnants of the Inca civilization, which flourished in the Andes
     region of western part of South America. The city is thought to have been abandoned following an outbreak of smallpox, a
     disease introduced in the 1500s by invading Spanish forces.

    Hundreds of people gathered at the remote, 7,970-foot-high (2,430 m) site on Saturday to celebrate Machu Picchu's new
    “seven wonders” status. The winners were revealed at a soccer stadium in the Portuguese capital, Lisbon. The other two Latin
    American selections were Christ the Redeemer in Rio de Janeiro, Brazil and Chichén Itzá, Mexico.
The Ancient Maayaa city (Chichén Itzá, Mexico)
    Chichén Itzá is possibly the most famous temple city of the Maayaas, a pre-Columbian civilization that lived in present day
     Central America. It was the political and religious center of Maayaa civilization during the period from AD 750 to 1200.
     Temple of Kukulkan, located in the heart of the city which rises to a height of 79 feet (24 m). Each of its four sides has 91
      steps—one step for each day of the year, with the 365th day represented by the platform on the top.

Pyramids (Giza, Egypt)
    The Egyptian pharaoh Khufu built the Great Pyramid in about 2560 BC to serve as his tomb. The Pyramid is the oldest
      structure on the original list of the seven wonders of the ancient world, which was compiled by Greek scholars about 2,200
      years ago. It is also the only remaining survivor from the original list.

    This Great Pyramid is the largest of three Pyramids at Giza, bordering modern-day Cairo. Although weathering has caused the
     structure to stand a few feet shorter today, the Pyramid was about 480 feet (145 m) high when it was first built. It is
     thought to have been the planet's tallest human-made structure for more than four millennia.

    Initially the Giza Pyramids were top contenders in the Internet and phone ballot to make a new list of world wonders. But
    leading Egyptian officials were outraged by the contest, saying the Pyramids shouldn't be put to a vote. Egypt's antiquities
    chief Zahi Hawass told the AFP news agency - "This contest will not detract from the value of the Pyramids, which is the
    only real wonder of the world,"