Stelae are upright stone slabs or pillars that often serve as monuments or markers. They are typically inscribed with text or decorated with reliefs, and have been used by various cultures throughout history, including the Ancient Egyptians and Mesoamerican civilizations. Stelae can commemorate significant events, honor individuals, or mark territorial boundaries. These structures vary in size and design, reflecting the artistic styles and cultural significance of the societies that created them. Some famous examples include the Rosetta Stone, which features inscriptions in multiple languages, and the Maya stelae, which often depict rulers and important historical events.