I just posted March's challenge. I chose as topic "Traveling the World", hope you think it is OK.
I will have a hard time participating myself, I learned of an unexpected visit by some friends from overseas, they'll be here 10 days and I'll be showing them around, plus I have one or two courses to lecture and some seminars. That's on top of every day's work and extra family duties. So, while I'll check in and chat, I fear I'll have little time to produce something. Will try, though.
Still I have a lot of old pictures, so I may upload some in answer to the prompt.
And if nobody steps up, I could possibly take May.