2The Chapel Oak, France

Located in the small village of Allouville-Bellefosse in Normandy, France, the Chapel Oak (Chêne-Chapelle) is an ancient oak tree with a unique twist—it has a chapel built inside its hollow trunk. The oak is estimated to be over 800 years old and is considered one of the oldest trees in France. In the 17th century, after a lightning strike hollowed out the trunk, locals constructed a small chapel within the tree to honor the Virgin Mary. Today, the Chapel Oak is a beloved historical monument, attracting pilgrims and tourists alike who come to admire its beauty and spiritual significance.