It is not a reconstruction or a decorative folly. It is an actual prehistoric burial structure, relocated from its original ground and now occupying an improbable home inside the Zoological Gardens in the Phoenix Park.

The tomb was not always here. It was first uncovered in a sandpit close to Chapelizod, a village on the western edge of Dublin, not far from a local landmark known as Knockmary in the Phoenix Park. Megalithic tombs, a broad term covering various types of large stone burial monuments built in Ireland during the Neolithic and Bronze Age periods, were typically constructed to house the dead and may have served ceremonial functions for the communities that built them. This particular example was discovered to contain a human skeleton within the tomb chamber, a detail recorded by both Borlase in 1897 and Poe in 1904. At some point after its discovery, rather than being left in situ or transferred to a museum, the structure was moved to the Zoological Gardens, where it has remained.

The Zoo sits within the Phoenix Park, so visitors approaching from the city centre will find it well signposted. The megalithic structure is not prominently advertised as an attraction in its own right; it tends to be encountered rather than sought out, which is part of what makes it worth looking for. Normal Zoo admission applies, and the gardens are open year-round, though the structure itself is simply present in the landscape rather than enclosed or formally interpreted on site. Anyone with an interest in Irish prehistory would do well to keep an eye out for it, since it is easy to pass by without fully registering what it actually is.