Mythical objects are items that appear in folklore, legends, and mythology, often possessing extraordinary powers or significance. Examples include the Holy Grail, a legendary cup said to grant eternal life, and Excalibur, the magical sword of King Arthur that symbolizes rightful sovereignty. These objects often serve as central elements in stories, representing quests, challenges, or moral lessons. They can be found in various cultures, such as the Philosopher's Stone, which is believed to turn base metals into gold and grant immortality, highlighting humanity's desire for knowledge and power.