http://greatist.com/fitness/50-bodyweight-exercises-you-can-do-anywhere
Check out #8, #11, & #18
8. Burpees: One of the most effective full-body exercises around, this one starts out in a low squat position with hands on the floor. Next, kick the feet back to a push-up position, complete one push-up, then immediately return the feet to the squat position. Leap up as high as possible before squatting and moving back into the push-up portion of the show.
11. Wall Sit: Who needs a chair when there’s a wall? Slowly slide your back down a wall until the thighs are parallel to the ground. Make sure the knees are directly above the ankles and keep the back straight. Go for 60 seconds per set (or however long it takes to turn those legs to jelly). Need more fire? Add some bicep curls.
18. Pistol Squat: Stand holding the arms straight out in front of the body, and raise the right leg, flexing the right ankle and pushing the hips back. Then lower the body while keeping the right leg raised. Hold (have fun with that), then return to standing.