Meditating on the beach. noun. Peace of mind is freedom from war, law and order, harmony, or calm and quiet. An example of peace of mind is two countries at war declaring a treaty. An example of peace of mind is going to sleep at night with everyone in the family safely in bed.
The oldest castle in the world that is still standing is Windsor  Castle, home of Queen Elizabeth II. It was built in 1070. Castles  were first built in Europe around 800 AD â¦ .
Vote for this answer. White Castle is the oldest American hamburger fast food restaurant chain. It is known for square burgers, commonly referred to as sliders (or slyders), which were priced at 5 cents until the 1940s, and remained at ten cents for years thereafter while growing smaller. Aug 01 07, 3:48 AM.