1

Well, to experience the glory of the mountains, you could go to place with chairlifts or other conveyences. Apart from ski areas (even off season) , this might include places where they have tourist lifts. Salta , Argentina, has one over the city. Villarica volcano over Pucon has one part way up. Generally, the lake district of Argentina (such as Mt Otto or Cathedral at Bariloche) and Chile has many such places that are open year-round. A tour made for you might be the Observatory tour up a road above the Atacama Desert of Chile (i forget the name of the place at the moment) alto it would be expensive and you would have to book well in advance.

I am sure Macchu Pichu has tours for disabled people with special arrangements, but I would not know where to start to look. Again, it might be prohibitively expensive.

Buen viaje!

2

Brazil. It's mostly flat, except for the bits that aren't.

3

To add to the comment about the observatories in norrthern Chile, there are many you could tour. I do not want to recommend this particular tour company, but this page gives you an idea of the location of some of them.

http://astronomytours.co.uk/node/35174/itinerary-map

See also this for a simpler tour of one near Vicuña, east of La Sirena:

http://www.welcomechile.com/vicuna/mamalluca-astronomical-observatory.html

4

A page dealing with handicapped access of Macchu Pichu:

http://www.tripadvisor.co.uk/ShowTopic-g294318-i3352-k4146235-Handicapped_access-Machu_Picchu_Sacred_Valley_Cusco_Region.html

5

Brazil is too hot and humid if you are in a bad shape!

6

Really? 23 degrees with a pleasant sea breeze today.

7

all over Brazil????Manaus included??

8

No, which demonstrates the fallacy of your argument.

9

Not at all. Except for southern Brazil, 80% of the territory, all mayor tourist destinations included like Rio, Salvador, Recife, Pantanal, the Amazon, Fortaleza, Recife, except Iguazu will have hot and humid climate in july.