The historic heart of Edinburgh and home to many of the city’s most popular tourist attractions, the atmospheric Old Town became a UNESCO World Heritage site in 1995. Watched over by the striking Edinburgh Castle, the Old Town is most famous for the central boulevard which runs between the hilltop castle and the Royal Palace of Holyrood, four sequential streets known as the Royal Mile.
20. EDINBURGH, SCOTLAND — Scotland's capital is perched on a series of extinct volcanoes and rocky crags. Visitors can get sweeping views of the city from the stunning Edinburgh Castle. The city also plays host to an array of international festivals throughout the year, as well as a bustling nightlife scene year-round.