In which country would you find Machu Picchu?

In which country is the city of Cusco? In which country is the city of Arequipa? In which country is the city of Guayaquil? In which country is the city of Punta del Este? In which country would you find Angkor Wat? In which country would you find Petra? In which country would you find the Taj Mahal? In which country would you find the Colosseum?