ANTONY REEVE-CROOK LOOKS BEYOND SPAIN'S CREAKING ECONOMY AND FINDS REAL WEALTH IN THE UNEXPLORED OPPORTUNITY AWAITING ITS EXHIBITION INDUSTRYFERIA HYSTERIANowhere is this evidenced better than in the north eastern city Zaragoza, host of Expo 2008, a major world's fair event focused on water and sustainable development. The venue has almost 190,000sqm of covered space and a noticeable dearth of international exhibitions. The country has huge appeal for tourists, major investment potential as Europe's fi fth largest economy and all in all more than 80 exhibition centres of varying size. And before anybody plays the economy card, Spain's problems with fi lling the space available in its nationwide network of pain's leading cities are among the best-known exhibition destinations in Europe. As with the German model, they are publicly owned, but as is often the case, the public sector is not entirely in step with private enterprise. Outside of Spain's major exhibition hubs; the industrial heavyweight Bilbao, commercial and Catalan capital Barcelona, coastal city and host of this year's UFI Congress Valencia, and national seat of governance Madrid, there are many venues in Spain that are simply devoid of the international exhibitions they are well capable of hosting.