Carl the caterpillar and Pilar the parrot met one day while walking on a country road. Carl soon learned that Pilar was from the Caribbean and had never been to the United States. So, Carl decided to take Pilar on a tour to show her some of his favorite natural landmarks in the U.S.

Mt. Denali is the tallest mountain peak in North America measuring 20,310 feet! It is located in Denali National Park in Alaska and is part of the Alaska Range. Few visitors have tried to reach it because of the extreme weather and conditions.

The Grand Canyon is positioned in Grand Canyon National Park in Arizona. It is 277 miles long and up to 18 miles wide. It was carved over many, many years by the Colorado River. About five million visitors witness this natural landmark every year.

Niagara Falls consists of three falls from the Niagara River. They are on the Canadian and U.S. border. There is a combined 750,000 gallons of water per second. Twenty percent of the world's freshwater is contained in the Great Lakes and much of it flows over Niagara Falls.

The Everglades contains the largest subtropical wilderness in the United States. It spans 1.5 million acres and is situated in southern Florida. It is an important habitat for many rare and endangered species such as the manatee and American crocodile.

Yellowstone National Park was the first national park in the U.S. which was established in 1872. It is in Wyoming, Montana, and Idaho. The park is an active super volcano which also contains waterfalls, geysers, and many animals including endangered species.

Carl and Pilar had such a fantastic time touring the U.S. that they promised to get together again soon. Their next adventure would be in the Caribbean.