The biggest tulip garden in the world is Keukenhof, located in the municipality of Lisse, Netherlands. It is also known as the “Garden of Europe” and is one of the world’s largest flower gardens. It features more than 7 million flower bulbs planted annually, with approximately 800 varieties of tulips. Other flowers include daffodils, hyacinths, lilies, and irises. Keukenhof is only open to the public for a limited period in the spring, typically from mid-March to mid-May.