The Singapore Zoo, formerly known as the Singapore Zoological Gardens and commonly known locally as the Mandai Zoo, occupies 28 hectares on the margins of Upper Seletar Reservoir within Singapore's heavily forested central catchment area.
Gardens by the Bay is a nature park spanning 101 hectares of reclaimed land in the Central Region of Singapore, adjacent to the Marina Reservoir. The park consists of three waterfront gardens: Bay South Garden, Bay East Garden and Bay Central Garden. The largest of the gardens is Bay South Garden at 54 hectares.
The Singapore Botanic Gardens is a 160-year-old tropical garden located at the fringe of Singapore's Orchard Road shopping district. It is one of three gardens, and the only tropical garden, to be honoured as a UNESCO World Heritage Site.
Mada'in Saleh, also called "Al-Hijr" or "Hegra", is an archaeological site located in the Sector of Al-`Ula within Al Madinah Region, the Hejaz, Saudi Arabia. A majority of the remains date from the Nabatean kingdom. The site constitutes the kingdom's southernmost and largest settlement after Petra, its capital.