Kew Gardens is 121 hectares of gardens and botanical glasshouses. It is also an internationally important botanical research and education institution. There are several major attractions at kew gardens, including a Treetop walkway, Palm House, Princess of Wales Conservatory and a Pagoda.
Opening Times: Formal Gardens: Summer 10:00-19:00, Other times 10:00-17:30. Palace and Maze: Summer 10:00-18:00, Other times 10:00-16:30.
Nearest Station: Kew Gardens station (Tube and Overground Rail), Kew Bridge (Overground Rail).
For more info, go to http://www.kew.org/visit-kew-gardens/index.htm