^ Agreed with spacevirgin. Those 1 and 2 day stops make for a lot of travelling, and you're going to get tired... BUT it is possible, and if you feel like you need to fit in everything, then by all means.
But unless any of these spaces have a complete 'must see' place, I would suggest killing off one or two destinations, and spreading the days around more generously.
Also I would only suggest day trips for places you are staying 2 days or more in (unless you're staying in one of those towns whose sole existence is due to its being in proximity to some major site).
Vincent: "So what you gonna do?"
Jules: "Well, basically, I'm just gonna walk the earth."
Vincent: "What you mean 'walk the earth'?"
Jules: "You know, like Kane in 'Kung Fu'...go places...meet people...get in adventures."
Trips (only counting recreational travel):
FIRST TRIP (2005): FIRST EUROTRIP EVER! UK, France, Spain, Italy, Germany, Holland
SECOND TRIP (2007): First Solo Trip! Greece, Turkey, Syria, Spain
2008: China (Beijing, Shanghai, Yangshuo) ...right before the Olympics!
2009: Japan & HK, Southern Spain
[size=1]2010: All over Lebanon, Ibiza (Spain), Oktoberfest (Germany), Thailand.
2011: India (Goa), Jordan, Jerusalem, San Sebastian (Spain), Amsterdam (again), London, Driving from Vancouver to L.A. (stopping in Portland, Seattle, San Fran and all the little stops), Montpellier (France), Geneva and Lausanne (Switzerland)
"Bite off more than you can chew, then chew it."