More landmarks across the UK signed up than ever before including:

In London: Royal Albert Hall, British Library, Old Royal Naval College, Bush Theatre, English National Opera, IPC Media, ITV South Bank, Savoy Theatre, Duke of York’s Theatre, Norton Rose, Pearson PLC (Shell Mex House), Wembley Stadium, Australia House, Harrods, St-Martin-In-The-Fields, 99 Bishops Gate, Guildhall, Tower Bridge, St Paul’s, The Barbican Arts Centre, The Monument, The Mansion House, National History Museum, Liberal Democrats (party) HQ, Earls Court, Olympia London,  Buckingham Palace, Windsor Castle, Palace of Holyroodhouse, BFI IMAX, Centre Point, Cadogan Hall, Linford Christie Stadium, Temple Church, Somerset House, The Gherkin, South Bank Centre, London Eye, Piccadilly Circus, OXO Tower Restaurant, Bar & Brasserie, Park Plaza Westminster Bridge, Park Plaza County Hall, Park Plaza Riverbank, Skylon, Fishmonger’s Hall, City Hall, Trafalgar Square, BT Tower and Old Vic Theatre.

Premier League teams including, Arsenal, Cardiff City, Manchester United, & Tottenham Hotspur have all come together and signed up to support Earth Hour this year. They are switching off all non-essential lighting during the hour to show their support for this global event, to show they care about the planet.

Across the UK: The Lightbox in Woking, Sheffield United FC, Cardiff Castle, National Library of Wales, Brighton Pier, Durham University and Durham Castle, Edinburgh Castle, Urquhart Castle, Ruthven Barracks, Carrbridge, Forth Rail Bridge, Arbroath Abbey, Stirling Castle, Castle Campbell, Scottish Parliament, Caernarfon Castle, Castell Coch, Tintern Abbey, Kidwelly Castle, Caerphilly Castle and many more!

Take a look at some of our before and after photos. Click the pictures to switch off the lights…

Houses of Parliament

© Vlad Barin / WWF-UK

Big Ben

© Vlad Barin / WWF-UK

10 Downing St.

© Ash Knotek / WWF-UK

Buckingham Palace

© Shaun Des Nelson / WWF-UK

Tower Bridge

© Ian James / WWF-UK

Natural History Museum, London

© Tom Bradley / WWF-UK

Brighton Pier

© Tristan Fewings / WWF-UK

Brighton Wheel

© Tristan Fewings / WWF-UK

Chapter Art Center, Wales

© Nick Treharne / WWF-UK

Here are just a few more of iconic landmarks across the UK that switched off to show their support for the future of our planet:

Edinburgh Castle, Durham Cathedral, Windsor Castle, Trafalgar Square, Piccadilly Circus, The Gherkin, Westminster Abbey, St Paul’s, BFI IMAX, Park Lane Hotel, The Savoy, London Bridge, Australia House, Wembley Stadium, Old Trafford, Canterbury Cathedral, Lincoln Castle, The London Eye – and many more across the UK!

Do let us know what landmarks switched off in your local area in the comments below. If you’ve got any pictures, please email us!

  • Hilary


  • Nicky


  • Emma

    That’s brilliant, I wish I could see the Piccadilly Circus unlit :0)

  • jane

    Is the message getting thru at last??? Lets hop so…

  • Susana

    This is absolutely fantastic!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

  • Donna

    United in trying to save this beautiful planet

  • Mike

    If David Caeron is getting the message, then maybe there is hope!

  • P

    I booked a table at the restaurant in Tate Modern last night specifically to watch the lights go out on St. Pauls. They didn’t.

    • EdWWF

      Really sorry to hear that – we think St. Pauls switched off an hour early this year so might go some way to explaining why you missed it.. hopefully you got a chance to see some of the other landmark switch-offs in the city?

  • Maggie Healy

    Great way to raise awareness, first ive heard of it

  • Just wondering

    Turning off the lights for an hour is rather cute, but … How about not flying? How about leaving the car unused? How about buying local food?

  • Phil Bennion MEP

    Well done to Redditch Council for deciding to join in, cross-party support. I’ll be there tonight as they turn off the lights in the Town Hall and Palace Theatre.

  • Phil Bennion MEP

    Belgrade Theatre in Coventry also taking part.

  • Londoner

    Heron Tower, Shard, Tower 42 not taking part!??

  • Joanne Reynolds

    We are in ;) love the fact that people all over the world are joining in. This is great for the planet. We gave up flying deven years ago. We love exploring our own country and going to France by ferry or train.

  • Amanda Barrie

    Canary wharf? Far too many lights left on there everyday!

  • Valerie Fortune

    What an amazing achievement!!!!!

  • Donna

    Really looking forward to being apart of it next yr…… Well done to everyone involved xx