In which country would you find the Taj Mahal?

In which country is the city of Punta del Este? In which country would you find Machu Picchu? In which country would you find Angkor Wat? In which country would you find Petra? In which country would you find the Colosseum? In which country would you find the Eiffel Tower? In which country would you find the Sagrada Família? In which country would you find the Acropolis?