A UNESCO World Heritage Site, the Royal Botanic Gardens boast extensive, historic, and stunning landscapes that showcase important periods of garden and landscape art from the 18th to the 20th centuries. Known as Kew Gardens, this remarkable site features a plant collection unmatched anywhere in the world.
Since their establishment as a royal estate in 1759, Kew Gardens have played a vital role in the study of plant diversity and economic botany. Spanning 120 hectares (300 acres), the gardens stretch over 1.5 km (0.9 mi) in length, offering a vast and diverse exploration of flora.
The gardens are home to impressive glasshouses, a conservatory, and a range of installations, including buildings, art, and exotic plant species. One of the highlights is the Temperate House, which reopened in May 2018. It stands as the largest surviving Victorian glass structure in the world, offering visitors a glimpse into a world of temperate climate plants.
Source - https://en.wikipedia.org/wiki/Kew_Gardens