China's National Botanic Garden has opened in Beijing. It's already attracting all kinds of visitors, from those looking for a fix of spring-time color, to those wanting to know more about the origins of curious plants. Authorities say it's also helping to better protect biodiversity. The National Botanical Garden will introduce more than 30,000 kinds of plants and five million representative specimens from five continents. Officials say the garden serves as a national plant diversity protection base and helps visitors develop a connection with plants while appreciating and learning about them.