I just booked myself a trip to Cuba with miles. One direction I am flying on a single award from the United States to Cuba. On the return, I am flying two awards: Cuba to Colombia and Colombia to the United States.

I used American Airlines, Asiana, and Lufthansa miles, all of which are easily available to Americans.
Can Americans Travel to Cuba?
Here is the State Department's page on visiting Cuba.

I am going to travel to Cuba on a general license as a journalist.

I'm intrigued by flights and awards that don't involve America. If there's a cool award to get from Australia to SE Asia, that can be integral to a longer, better, and cheaper trip.

My two favorite continents to explore are South America and Europe.

Avianca recently began flying the 787 Dreamliner from Colombia to destinations in South America and North America. Soon it will also fly the Dreamliner to Europe!

http://www.youtube.com/watch?v=ZqdYxH8Y1WA&t=0m17s

This is exciting because Avianca's fully flat Business Class looks very nice, award prices on the long intra-South American flights are super cheap, and this is be the most comfortable way to fly between the United States and Colombia.
The Product
I just flew Avianca's angled flat bed on its A330 from Bogota to Buenos Aires.