Not only is the picturesque Sheikh Zayed Grand Mosque in Abu Dhabi the largest mosque in the entire UAE, but is also one of the most-visited tourist attractions in the bustling metropolis. Besides inviting you to indulge in the breathtaking beauty of a fine architectural masterpiece without costing you a single buck, it is also one of the handfuls of mosques that welcome non-muslim tourists. The principal, striking white marble structure isn't only what makes the mosque one of the most incredible experiences to be had in Abu Dhabi, but also the treasures the likes of the world's largest hand-loomed carpet and the world's biggest handmade chandelier that the mosque houses.