What is the things called on top of the Gurdwaras?

The structures on top of Gurdwaras are called "Chhatris" or "Dome." These domes often have a distinctive design and are typically topped with a finial known as a "Khanda," which symbolizes Sikh faith and values. The dome represents spirituality and the connection to the divine, while the Chhatri serves both a decorative and functional purpose, providing shelter and enhancing the architectural beauty of the Gurdwara.