OVER 300 towns and cities in Spain joined in with last night's (Saturday's) annual Planet Hour, where lights are switched off between 20.30hrs and 21.30hrs mainland time.
A total of 178 countries joined in this year in the global switch-off organised by the World Wildlife Foundation (WWF) to raise awareness of climate change and the need to protect the environment.
Major monuments across Spain were plunged into darkness, including the Mosque in Córdoba and its neighbouring Roman bridge; Madrid's Puerta de Alcalá, the capital's answer to the Arc de Triomphe (pictured), its Royal Palace, Palace of the Orient in the square of the same name, and city hall, plus the Roman aqueduct in Segovia, the Sagrada Família Cathedral in Barcelona, the Giralda spire in Sevilla, the cathedral in Santiago de Compostela, Galicia, and the Alhambra Palace in Granada.
Even major websites in Spain shut down for a whole hour to join in WWF Planet Hour.
Elsewhere, Vienna's Schoenbrun Palace, Rome's Fontana di Trevi, Warsaw's Palace of Culture and Science and National Stadium, Moscow's Christ the Saviour Cathedral and the Kremlin, the Malaysian capital Kuala Lumpur's iconic Petronas Towers, the Taipei 101 skyscraper in Taiwan, Sydney Opera House and the Harbour Bridge, and the Buddhist temple in Borobudur, Indonesia were pictured with their lights off.