Top 3 places to visit before die

With the title "best place to visit before you die" i thing in the view of the place, impact and the history of itself, so when i choose these places, is was see the photos and imagine be there. But only with this ideas, i change my choose 2 or 3 times, but when i read the places i finally made my top 3, that are: 1- Petra, 2- Iguazú falls and 3- Galápagos islands

1 its a city with different ideals, the proper context form that rock and cavers have been converted into a architectonic and engineering marvel. This Megalith have years of history and knowlegde, its just to see the columns, or the decoration to imagine a style and culture, to imagine constructive systems and city design.

2. the views of this place have to be magnifics, a superb creation of nature. but this place also have a misty aspect, its kind a game of scales where human are tiny. 

3. when i read about this place i imagine a whole natural kingdom where the human can not be allowed, is interesting to thing about a place with this caracteristics and importance. A place where we are intruders demands concentration and respect.