7 wofers of ancient world

Actually what do you know about seven wofers of ancient world?Well,i really impresssed and proud about the architect which is create and build up these seven wonders of ancient world.As you know,seven wonders of ancient world are:(1)The Great Pyramid Of Giza(still in existence)(2)The Colosseum in Rome(3)The Great Wall of China(4)Taj Mahal(5)Christ the Redeemer(6)Machu Picchu(7)Petra