Economy of Devon of the railways in the 19th century, Devon's economy has been heavily reliant on tourism. The county's economy has followed the declining trend of British seaside resorts since the mid 20th century, with some recent revival. This revival has been aided by the designation of much of Devon's countryside and coastline as the Dartmoor and Exmoor national parks, and the Jurassic Coast and Cornwall and West Devon Mining Landscape World Heritage Sites. In 2004 the county's tourist revenue was £1.2 billion. The Met Office is in Exeter as is Connaught plc, and Pennon Group, the water company. The Wrigley Company
Monasteries on the slopes of Popocatépetl UNESCO World Heritage Site consists of fourteen monasteries that are located south and east of Mexico City, most in the state of Morelos, with three in the state of Puebla. The monasteries in Morelos are located in the municipalities of Atlatlahucan, Cuernavaca, Tetela del Volcán (including the one in Hueyapan), Yautepec, Ocuituco, Tepoztlán, Tlayacapan, Totolapan, Yecapixtla and Zacualpan de Amilpas. The three in Puebla are located in Calpan, Huejotzingo and Tochimilco . Most, but not all, of these monasteries are located on the periphery of the Popocatepetl volcano. They were declared a World Heritage Site on 17 December 1994, due