The Botanical Garden of Padua, established in 1545, is one of the oldest botanical gardens in the world. It is located in Padua, Italy and covers an area of about 22 acres. The garden was created for the study of medicinal plants and has since expanded to include a diverse collection of over 6,000 plant species. In 1997, the garden was designated a UNESCO World Heritage Site due to its historical significance and contributions to botany. It features various sections, including a tropical greenhouse and a garden dedicated to ancient plants, showcasing the evolution of plant life over time.