Win Olympia tickets
READERS of COUNTRY LIFE have the chance to win one of five pairs of tickets to the exclusive VIP preview of the Art & Antiques Fair Olympia (www.olympia-art-antiques.com) on June 26 (4pm–9pm). The event will provide a lucky few with the opportunity to see and buy from a treasure trove of more than 55,000 pieces, glass of fizz in hand. Visit www.countrylife. co.uk/competitions to enter; the competition closes on May 17.
A network of First World War training tunnels has been found