What's our Itinerary?

Even though we're trying not to plan too much in advance,we have come up with a pretty adventuresome mix of popular and remote destinations:

Hawaii, Peru, Machu Pichu, Ecuador, Amazon, Galapagos, Brazil, South Africa, Madagascar, Germany, Rome, Greece, Switzerland, Hong Kong, Cambodia, Bangkok, Mongolia, Beijing, Auckland, Fiji...then home again! . . . this has only taken 4 weeks staying awake until midnight on the computer and phone to United Airlines every night to figure out. Ha!

What do you think? Any travel tips or must sees you know about?