What once was three small villages of Muscat, Muttrah and Ruwi today constitutes the modern, ever-growing and very cosmopolitan Omani capital, with each of the three areas still preserving some of their individual flair. Old Muscat, the historic heart of the city, contains some of the finest Arabian architecture and cultural heritage sites. Old Portuguese forts and historic buildings breathe the charm of foregone ages. The opulent Sultan Qaboos Grand Mosque, a rather new addition to the local architectural landscape, has grown to become the country's major religious centre and is open to visitors of all convictions. The scenic, vibrant port area of Muttrah is the place to be right before sundown. A promenade along its seaside Corniche lined with stylish hotels and eateries makes for a perfect kick-start to the evening, to be continued exploring the Muttrah Souq and Muscat's somewhat hushed, but very present nightlife. Neighboring Ruwi is, perhaps, best explored during daylight hours, when this newly emerged business districts' eclectic make up becomes most apparent. Some distances might prove too long for walking, but commuting between Muscat's historically detached areas is made easy by omnipresent minibuses and taxis, easily hailed down from any point in the city.