I have a few weeks off that I must take before April and I want to go to Europe for a backpacking trip. Well not exactly backpacking as I will be cashing out some free hotel stays, and I want to get to Europe via business. I don't know where I want to go. Could be anywhere that's interesting and easy to get award tickets to. I have the following points and want the best for the buck. I'm going alone, but would like to save some points for vacay with my husband later.

I'm flying out of sfo.
175k united
150k ultimate rewards
117k amex
41000 delta

Any suggestions???

Thanks!!!