What are really considered the Seven Wonders of the World?
There is a lot of debate and even different classifications have come up to define what are the actual Seven Wonders of the World. There are some that are considered the Seven Ancient Wonders and there are some that are considered the New Seven Wonders, but there seems to be a definitive list of the Seven Wonders which is the following: 
 The Great Wall of China
 The Taj Mahal
 The Colosseum
 Chichen Itza
 Machu Picchu
 Christ the Redeemer
 Petra