The stunning Sheikh Zayed Mosque in Abu Dhabi is the spiritual center of the city and a major pilgrimage site for Muslims. Built with hundreds of thousands of tons of white marble and ivory stonework, the mosque is an engineering marvel that often hosts respectful visitors from all over the world. While the exterior is resplendent with classic Islamic design elements, the sheer grandiosity of the mosque is astonishing. Upon visiting, you're likely to be taken aback by the immense 99-domes, 8 minarets, 24-carat gold gilded chandeliers, and the world's largest hand-knotted carpet. Be sure to visit the inside of the mosque's Prayer Hall, where profound tranquility awaits. You can also take a tour of the landscaped gardens outside, which offer serene views of the mosque and its offerings.