As I've done most of my traveling north of the equator, I've often planned an RTW in the southern hemisphere where up until now I have only visit Peru, Kenya, Indonesia, Australia, New Zealand and a few South Pacific islands.
My itinerary would be as follows:
Denver to French Polynesia (Bora Bora) for a week, and the Cook Islands for a week.
Then on to Australia for at least a month, making my way from Adelaide, to Melbourne, Sydney, Brisbane, and Alice Springs/Ayres Rock, and finally to Cairns.
From there I would fly to Bali and eastern Java (Borobudur) for two weeks.
Then on to Singapore for a few days and India for a quick visit to see the Taj Mahal and Jaipur, but going first class all the way...no Delhi Belly for me!!
Next would be Dubai, where I would visit the various emirates in the UAE for a couple weeks.
The majority of my time on the RTW would be devoted to Africa arriving in Dar Es Salam and overlanding to Cape Town via Tanzania (Zanzibar and Kilimanjaro), Malawi, Zambia (Victoria Falls), Botswana, Namibia, and South Africa. Although I have contemplated overlanding the rough way (e.g., Dragoman: traveling in trucks, shopping for ingredients and then cooking the meals ourselves, and setting up tents each night, no showers, etc,), with $50,000 I could afford to take a more luxurious tour.
From Cape Town I would fly to Valparaiso, Chile and catch a two week cruise (suite of course) around the southern end of South America stopping in Punta Arenas (where I would catch a two hour flight to Antarctica for the day...no seasickness by taking the ship there...where I could walk around on the continent before flying back to catch the ship again), Ushuaia, the Falkland Islands, Montevideo, and Buenos Aires. From there I would fly via Cordoba and Iguaçu Falls to Rio de Janeiro for a week or so, before flying north to cruise the Amazon River.
The cruise would include or connect to another cruise to the eastern Caribbean islands. I would then fly to Costa Rica where I would travel for three week overland through Nicaragua, Honduras, Guatemala, Belize and end in Riviera Maya in Mexico for a week to recuperate.
If I had any of the $50,000 left I would fly to Munich to pick up a new BMW and then drive all over the European continent, revisiting my favorite cities and country sides, until the money and time ran out. Now to win the lottery!