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¦ .
Top 10 Most Famous Castles in the World. The world is flooded with various breathtaking buildings, some of them are known to be new, while others belong to ancient times.The castles are especially having a distinctive place in the hearts of tourists. Below are mentioned the top 10 most famous castles in the world.. Prague Castle, Prague, Czech Republic. It is one of the largest and oldest castles in the world. This was constructed in early 19 th century and is about 570 meters long, and having about 130 meters width.