Mexico is a country between the U.S. and Central America that's known for its Pacific and Gulf of Mexico beaches and its diverse landscape of mountains, deserts and jungles. Ancient ruins such as Teotihuacan (Aztec) and Chichen Itza (Mayan) are scattered throughout the country, as are Spanish colonial-era towns. In capital Mexico City, upscale shops, renowned museums and gourmet restaurants cater to modern life. The Tropic of Cancer effectively divides the country into temperate and tropical zones. Land north of the twenty-fourth parallel experiences cooler temperatures during the winter months. South of the twenty-fourth parallel, temperatures are fairly constant year round and vary solely as a function of elevation. This gives Mexico one of the world's most diverse weather systems. The most notable attractions are the Meso-American ruins, cultural festivals, colonial cities, nature reserves and the beach resorts. The nation's temperate climate and unique culture – a fusion of the European and the Meso-American – make Mexico an attractive destination. The peak tourism seasons in the country are during December and the mid-Summer.