Photo: Gwen and James Anderson / Wikimedia Commons / CC BY-SA 2.0 — Source
Field Visit
Free
The Hermitage, Stirling University
The cliff-side ruin, now known as the Hermitage, was built 1790–1800 for Robert Haldane as a vantage point from which to view his recently inherited Airthrey estate and Airthrey Castle, designed for him by Robert Adam. The site can be visited with a little effort but you may prefer to just enjoy the grounds.