levels, the ground floor, the Observatory Space and the Open-Air Rooftop Deck. Visitors would take the lift up to the Observatory Space and thereafter take a flight of stairs up to the Rooftop Deck. The Observatory Space is located one level below the rooftop deck and it consists of an indoor area with full-height glass windows, as well as a peripheral outdoor walkway. Here visitors can also experience a message about the effects of climate change conveyed through digital media. The Open-Air Rooftop Deck, which is an open-air observation deck on the canopy of this Supertree, offers 360-degree unblocked views of the Gardens and the Marina Bay area. Italy's Pavilion in Expo 2015, featured a structure called Albero Della Vita (or "Tree of Life" in Italian), which proved visually similar to Singapore's Supertrees. Children's Garden Designed by Grant Associates, which also designed Gardens by the Bay, the Children's Garden was fully funded by Far East Organization for $10 million. This attraction was opened on 21 January 2014. The children's garden is near the treehouse and the adventure trail. The adventure trail consists of trampolines, balancing beams, hanging bridges and more. It is open from Tuesdays to Fridays from 10 a.m. to 7 p.m. and on Saturdays, Sundays and public holidays from 9 a.m. to 9 p.m. It is closed on Mondays, or on the next working day if Monday is a public holiday. Horticultural themed gardens There are two distinctly different sets of horticultural themed gardens which centre on the horticultural heritage of the various cultural groups in Singapore and on the biology and ecology of gardens and forests. They are an important part of the Gardens' edutainment programme, which aims to bring plant knowledge to the public. The "Heritage Gardens" theme features gardens that highlight the various cultural groups in Singapore and the important role that plants play in their respective cultures, as well as the country's colonial history. It also focuses on economically important plants in Singapore and South East Asia. The four gardens are the Indian Garden, the Chinese Garden, the Malay Garden and the Colonial Garden. The "World of Plants" theme emphasizes the web of relationships amongst the various plants within a fragile forest setting, showcasing the biodiversity of plant life on the planet. It consists of six subthemes illustrated by six "gardens", which are named Discovery, Web of Life, Fruits and Flowers, Understorey, World of