Edinburgh CastleVisit imposing Edinburgh Castle which dominates the city's skyline. St Margaret's Chapel is the oldest surviving part of the castle and dates back to the 12th century. Address: Edinburgh Castle, Castlehill, Edinburgh EH1 2NGWebsite: edinburghcastle.scot3. Modern Two GalleryThis former orphanage became a gallery in 1999, and is part of the National Gallery along with Modern One across the road. Address: Dean Gallery, 75 Belford Road, Edinburgh EH4 3DRTelephone: +44 131 624 6200Website: nationalgalleries.org4.