In which country is the Serengeti National Park located?

Which of the following national parks is home to the famous Angel's Landing hike? In which country is the Kruger National Park located? What is the smallest national park in the United States? Which national park is known for its unique hoodoos rock formations? What is the name of the largest national park in Canada? Which of the following national parks is home to the highest peak in North America? In which country is the Torres del Paine National Park located? What is the name of the oldest national park in the world?