The Kuttam Pokuna or The Twin Pond is situated in Anuradhapura in Sri Lanka.The Kuttam Pokuna, mistakenly known as the "Twin Ponds," which dates from the 3rd century AD, has been completely restored. These magnificent rectangular ponds, set end on end, were probably used for bathing purposes by the monks of a monastic establishment, perhaps of the nearby ruin called the Kaparama. Although they are referred to as twin ponds, the northern pond is 42 metres long, 18 metres wide and 5 metres deep, while the southern pond is 30 metres long, the same width, but one metre shallower.

There is no ostentation in the design of these ponds and yet the effect is impressive. They are contained within a perimeter embankment, while the ponds themselves are edged with a low wall. The four entrances are decorated with kumbakalasa, which are large solid stone vases carved with protruding lotus bids. Steps lead down into the ponds from both ends, while the walls are composed of tiered stone slabs. There is an ingenious hydraulic system that first feeds water into an enclosed filtration basin, then though a beautiful makara's (dragon-demon's) mouth into the southern pond, while an underground conduit feeds the northern pond. Note the imposing multi-headed Naga (cobra) that guards the flow of water into the northern pond.