Some of the ties are buried back into the dirt pile, called deadmen. The yard needed a gravel pad so we can eventually build a shop/garage. My husband built a retaining wall from railroad ties. Very hard work.
Those big bouncy balls are a must have for both at home workouts and exercises at the gym. Study has shown that workouts performed on the ball are more effective than floor exercises. Here is a list of 35 exercise ball workouts to work your whole body