Explore Oman holidays and discover the best time and places to visit. | In Muscat’s Grand Mosque, there is a beautiful hand-loomed carpet; it was once the world’s largest rug until Abu Dhabi’s Grand Mosque, in the United Arab Emirates, pinched the record. This is poignant because Oman doesn’t boast many ‘firsts’ or ‘biggests’ in a region bent on grandstanding.