American architect Doug Patt (YouTube channel) has created a series of videos for people considering architecture as a profession, or for those who are just curious.
So you want to be an architect is a nicely put-together series of videos available for free on YouTube. Each episode starts out with a simple question ("What does an architect do?"; "What does an architect learn?"; "What does an architect ask?") which Patt answers with sketches, photographs and plenty of straightforward explanations.