Highland games are events held in spring and summer in Scotland and other countries as a way of celebrating Scottish and Celtic culture, especially that of the Scottish Highlands. Certain aspects of the games are so well known as to have become emblematic of Scotland, such as the bagpipes, the kilt, and the heavy events, especially the caber toss. While centred on competitions in piping and drumming, dancing, and Scottish heavy athletics, the games also include entertainment and exhibits related to other aspects of Scottish and Gaelic culture. ___ Stirling Castle, located in Stirling, is one of the largest and most important castles, both historically and architecturally, in Scotland. The castle sits atop Castle Hill, an intrusive crag, which forms part of the Stirling Sill geological formation. It is surrounded on three sides by steep cliffs, giving it a strong defensive position. Its strategic location, guarding what was, until the 1890s, the farthest downstream crossing of the River Forth, has made it an important fortification from the earliest times. Most of the principal buildings of the castle date from the fifteenth and sixteenth centuries. A few structures of the fourteenth century remain, while the outer defences fronting the town date from the early eighteenth century. Several Scottish Kings and Queens have been crowned at Stirling, including Mary, Queen of Scots, in 1542. There have been at least eight sieges of Stirling Castle, including several during the Wars of Scottish Independence, with the last being in 1746, when Bonnie Prince Charlie unsuccessfully tried to take the castle. Stirling Castle is a Scheduled Ancient Monument, and is now a tourist attraction managed by Historic Scotland.