1. 7 wonders of the world

2. What are seven wonders of the world?
The Seven Wonders of the Ancient World is the first known list of the most remarkable creations of classical antiquity, and was based on guide-books popular among Hellenic sight-seers and only includes works located around the Mediterranean rim. The number seven was chosen because the Greeks believeIn the 19th and early 20th centuries, some writers wrote about lists with names such as Wonders of the Middle Ages, Seven Wonders of the Middle Ages, Seven Wonders of the Medieval Mind, and Architectural Wonders of the Middle Ages. However it is unlikely that these lists originated in the Middle Ages because the word medieval was not invented until the Enlightenment-era, and the concept of a Middle Age did not become popular until the 16th century. Brewer's Dictionary of Phrase and Fable refers to them as "later list[s] suggesting the lists were created after the Middle Ages.

3. Seven wonders of the world
The seven wonders of the world are:
Great Wall of China
Petra
Christ the Redeemer
Machu Picchu
Chichen Itza
Colosseum
Taj Mahal
Pyramids of Giza(honorary candidate)

4. The Taj Mahal The Taj Mahal is located in Agra, India
It was built in
It was built by Mughal emperor Shah Jahanin memory of his third wife, Mumtaz Mahal
The Taj Mahal is widely recognized as "the jewel of Muslim art in India

6. Chichen Itza The Chichen Itza is located in Yucatan, Mexico
It was built by Maya people in between the 9th and 12th centuries
It is also known as El Castillo (Spanish for castle)
Chichen Itza means At the mouth of the well of the Itza.

8. Christ the Redeemer (statue)
Christ the Redeemer is closest to Rio De Janeiro, Brazil
Christ the Redeemer was constructed between 1922 and 1931
It was made from 60,000 pieces of stone
About 100 people contributed to make it

10. The Colosseum The Colosseum is located in Rome, Italy
It was built in 70-80AD
It was built by Vespasian and Titus
It is also called the Flavian Amphitheatre
The Colosseum is in the centre of Rome

12. Great Wall of China
The Great Wall of China was made to protect the Chinese empire from other military forces
It was built in the 7th century BC
It is visible on the moon and in low earth orbit
It was made of stone, brick, earth, wood, and other materials

14. The Machu Picchu The Machu Picchu is located in Peru
It was built in about 1400
In January 2010, Machu Picchu flooded which trapped more than 2,000 local people and more than 2,000 tourists. Machu Picchu was closed temporarily, but it reopened on 1 April 2010
It is sometimes called the City of the Incas

16. The Petra The Petra is located in Ma’an Governorate, Jordan
It was made in 1200Bc
It lies on the slope of Mount Hor
It remained unknown to the western world until 1812