Here is the video of the virtual visit to the Gran Telescopio de Canarias at the Roque de Los Muchachos Observatory (La Palma, Canary Islands). This is the largest telescope on Earth situated at the mountain top of the island. The virtual visit has been recorded on the occasion of the AstroFest La Palma 2020 as part of the Astrotourism, Astronomy and Tourism Webinars organised by the Island Council of La Palma.
If you cannot come to La Palma to see the telescope in sittu or, while the visits to the Observatory are suspended due to the covid19, you can make the visit virtually in the video (language: Spanish). The video explains what the telescope does, how it works and what the real post-covid visits will be like.
Visits to the Observatory at Roque de Los Muchachos will resume in 2021. Information & bookings here.