Singapore Botanic Gardens

4k Ultra HD video of Singapore Botanic Gardens. The Singapore Botanic Gardens is a 74-hectare botanical garden in Singapore and is the only botanic garden in the world that opens from 5am to 12 midnight every single day of the year. In December 2012, an application for it to be listed as a UNESCO World Heritage Site was made and it is awarded the title by the World Heritage Committee in Germany on July 4, 2015. The Singapore Botanic Gardens has a small tropical rainforest of around six hectares in size and is located within the Singapore's city limits. Singapore is one of the only two major cities with a tropical rainforest within its city limits, the other being Tijuca Forest in Rio de Janeiro. Rainforests are forests characterized by high rainfall, with annual rainfall between 250 and 450 centimetres.The garden played a pivotal role in plant research and its studies of rubber for cultivation without destroying the trees.