Visitors come to the United States Botanic Garden in Washington, D.C. to enjoy many different plants, and the peace of nature. Anna Pavlova works nearby. She likes to come on short breaks during her workday, to find some peace. It feels like a forest in a city so I can be thinking about something else besides work for even five minutes which is sometimes very nice. This year, the U.S. Botanic Garden celebrates its 200th anniversary. It was founded by two U.S. Presidents, George Washington and Thomas Jefferson. Established in 1820, the Garden collects and grows plants. Its mission is to demonstrate the aesthetic, cultural, economic, therapeutic and ecological importance of plants to the well-being of humankind.