view from the esplanade of Edinburgh Castle looking south east across the roofs and spire of the Old Town towards the imposing outline of Arthur's Seat, the enormous extinct volcano that dominates the city - the enormous rock the Castle itself sits on and the distinctive ridge that runs down from the Castle gates down the Royal Mile to Palace of Holyrood are part of the same volcanic system. On the left you can see the Salisbury Crags with the Radical Road running along halfway up. If you can't face walking all the way to the peak of Arthur's Seat the Radical Road is easier and gives you good views out towards, well this spot I was standing in!
Walking around this enormous landmark in the mid to late 1700s Scottish scientist James Hutton contemplated the formation and age of the world, considered a much longer period than Bible scholars suggested, giving rise to the concept of 'deep time', that vast ocean of eons we now know formed the world we walk upon; he's widely considered the father of geology, and you can see why the natural landscape of his native land inspired such musings.
Arthur's Seat itself is part of a royal park, with the palace of Holyrood next to it (and now the modern Scots Parliament too). Plenty of cities have nice parks, not many have this in the middle of them! You can go hill walking in Edinburgh without leaving the city centre.
On the far left you can see the dome of the Old College Building of Edinburgh University.