Eilean Donan Castle will switch off its lights as part of conservation group WWF’s Earth Hour.
Owners of buildings and individuals across the world have been asked to turn out lights for 60 minutes from 2030 GMT on 28 March.
The Forth Rail Bridge and Edinburgh Castle are also part of the switch off.
Christ the Redeemer statue in Rio de Janeiro, the Eiffel Tower and Sydney Opera House will also be blacked out.
Outlander tours can be booked online or by phone on (+44) 0131-549-9785 for details and bookings .
Visit Lallybroch Castle ( Midhope Castle ) for just £90 . Hourly service from Edinburgh between 10 am and 2 pm . Phone (+44) 0131-549-9785 for details and bookings . Free pickup and dropoff from Edinburgh. Add two more Outlander film locations – Fort William and Wentworth prison – for a unique tour costing just £150 . Phone 07305-294773 for details and availability of Scotland Tours from Edinburgh .
Buy Outlander gifts online