Paraguay is a landlocked country between Argentina, Brazil and Bolivia, home to large swaths of swampland, subtropical forest and chaco, wildernesses comprising savanna and scrubland. The capital, Asunción, on the banks of the Paraguay River, is home to the grand Government Palace and the Museo del Barro, displaying pre-Columbian ceramics and ñandutí lacework, the latter available in many shops. The indigenous Guaraní had been living in Paraguay for at least a millennium before the Spanish conquered the territory in the 16th century. Spanish settlers and Jesuit missions introduced Christianity and Spanish culture to the region. Paraguay was a peripheral colony of the Spanish Empire, with few urban centers and settlers. The overall climate is tropical to subtropical. Like most lands in the region, Paraguay has only wet and dry periods. Winds play a major role in influencing Paraguay's weather: between October and March, warm winds blow from the Amazon Basin in the North, while the period between May and August brings cold winds from the Andes. The tourism in Paraguay employs 9500 people, according to data from 2010. According to figures from the World Tourism Organization, for the period 2013-2014 Paraguay was the least visited country of South America after Guyana and Suriname, with only 610,000 international tourists.