FYI, based on what I have been reading in the forums about the debacle of the challenges starting yesterday ... this one will soon be archived.
They MUST be location specific. "Take a picture in front of a flag" is too general ... "Take a picture in front of the flag in Tucson located at XXX" would be acceptable.
Only Groundspeak is supposed to be able to put out general world-wide ones at this point.
Just a heads up to anyone that may be thinking of putting some of these out there ... I for one and waiting until all the kinks to work out before considering it.