A botanical garden is a place where plants, especially flowers, are grown and displayed. They are sometimes referred to as arboretums[?]. They are occasionally associated with zoos.
This page lists important botanical gardens throughout the world
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North Weald tube station[?]
Ongar tube station[?]
St Mary's (Whitechapel Road) tube station[?]
South Acton tube station[?]
South Kentish Town tube ...