Astronomy
Form various vivid patterns
Nazca,PeruThere are many old scientific instruments
Florence,ItalyA park themed around the Tropic of Cancer
Pu'er,ChinaThe place where the prime meridian is located
London,United KingdomPrime location for stargazing at night
Lake Tekapo,New ZealandA tour of India's and Islamic architecture in Delhi
IndiaVisiting museums, galleries, and exhibitions in Chicago
United StatesRepair the most complete building
Chichen Itza,MexicoLandmark architectural complexes of Maya culture
Chichen Itza,Mexico1