Sun 12noon-5.30pm. Visits every 45 mins, duration 30 mins. Max 50 per visit. Last visit 4.45pm. Pre-book ONLY. Tickets allocated by draw. Application by email ONLY to bt-tower@open-city.org.uk.

Ballot opens Mon 16 Aug and closes Mon 13 Sept 5pm. Max 2 tickets per booking. Give full names, addresses, email and phone number of all attendees in application - applications without full info can't be considered; successful applicants ONLY notified in writing and this will be the ticket for entry. Non-successful applicants will NOT be notified. Tour-time will be allocated and is non-changeable. Airport security in place: visitors & bags searched with hand-held scanners. Photographic ID required, acceptable documents are: valid passport (any nationality) valid EU identity card, driving licence (photo card). Strictly no admittance without ticket and photo ID.

The BT Tower in London's West End was the first purpose-built tower to transmit high frequency radio waves when it opened as the GPO Tower in October 1965. It serves as a functional telecommunications centre designed to relay broadcast, internet and telephone information around the world. A major London landmark with unrivalled views across London this is a unique opportunity for members of the public to visit the famous revolving Floor 34, 158 metres above the capital. GR Yeats, Min of Public Buildings & Works/Trehearne & Norman/Aukett Europe 1961/1995/2000.