Can a prospective employer check when or where you have been travelling? I only ask because a friend has somewhat over embellished their CV with places they have been, silly I know, but he wants to know if the employer can check?
I don't think an employer can definitely check whether someone has been in a particular country on a certain date. However, I would be very careful about lying about having visited a certain country when you have never been there. Imagine if the interviewer started asking about famous landmarks, particular customs that a country has etc and you have no idea how to respond or what they are talking about!