Each Supertree is a steel frame wrapped in living plants - over 158,000 of them across the whole grove. Ferns, vines and flowers grow on the outside, turning the metal towers into giant vertical gardens.
The Supertrees don't just look incredible. They work like real trees, but with extra tricks. The tallest ones have solar panels on top that catch sunshine all day. At night, that stored sunshine powers the lights and music for a free show called Garden Rhapsody.
Some Supertrees also help cool the giant glass greenhouses next door. They act like chimneys - hot air rises up and out through the top - which keeps the indoor 'cloud forest' nice and cold inside. Cool air, clever engineering.
Singapore calls itself a 'Garden City', and Gardens by the Bay shows why. The whole point of the park is to prove that even a busy modern city can be packed with plants - on the ground, on roofs, and even climbing up the sides of buildings.