Ghost Hunting Event At Merchant Adventurer's Hall, York, With Simply Ghost Nights 17th Nov 2012, Simply Ghost Nights Exclusive Set in beautiful gardens in the centre of historic York stands the Merchant Adventurers' Hall. This grand building has been a meeting place some 650 years after construction began in 1357. There are three main rooms in the Hall. The Merchant Adventurers' Hall is of major national importance and is a grade 1 listed building and scheduled ancient monument. It was built between 1357 and 1361, before most of the craft or trade guild halls in Britain, making it one of the largest buildings of its kind and date in Britain., £49.00, York, 0843 289 1215.