The conservatory complex at Gardens by the Bay, Singapore, comprises two cooled conservatories – the Flower Dome and the Cloud Forest, situated along the edge of Marina Reservoir. The conservatories, designed by Wilkinson Eyre Architects, are intended to be an energy efficient showcase of sustainable building technologies and to provide an all-weather edutainment space within the Gardens. Both are very large (around 1 hectare (2.5 acres). 

Fact: Do you know that Flower Dome is the world's largest columnless glasshouse?

The Flower Dome is the lower but larger of the two, at 1.2 hectares (3.0 acres). It replicates a mild, dry climate and features plants found in the Mediterranean and other semi-arid tropical regions (e.g. parts of Australia, South America, South Africa).

The Flower Dome is 38 metres (125 ft) high and maintains a temperature between 23 °C and 25 °C, slightly lower at night.

The Flower Dome features 7 different "gardens" as well as an olive grove with a bistro and a central changing display field has also been incorporated to enable flower shows and displays to be held within the conservatory.

It was Xmas when we visited, hence the Xmas decos inside the dome.

Advisable to bring a jacket because of the cold temperature. Flower Dome closes at 9pm daily. Entrance fee is S$28 for both Flower Dome and Cloud Forest. Check out their rates here.