More to explore:
Art Barrage | Comics in odd places | Robot 6 @ Comic Book Resources – Covering Comic Book News and Entertainment -- Michael Cho
timetravel | Michael Cho's sketchbook: Time Travel!
Michael Cho's sketchbook
Illustrations by Michael Cho | Inspiration Grid | Design Inspiration
3 theories of time travel ...also the Doctor Who timey-wimey timeline in which there are no rules except for those which are convenient to the plot. (My favorite theory)
Time travelling beans. Just when you thought Tom Baker couldn't be cooler!
THE TIME TRAVELERS
Flux Capacitor aka the thing that causes time travel in Back to the Future
Travel Poster. Lake Balaton, Hungary. By Philipp Giegel. 1967