Over 6 metres (19.6 feet) high, the wall forming the outside corner of Ggantija South is very impressive. Build over 5,000 years ago, it has withstood the centuries. Yet in the last decades it has started to collapse and now is supported with scaffolding (erected in 1997). The collapse is mainly due to water seepage (from rain and humidity) and through vibrations caused by buses, loaded with visitors, passing through a road constructed immediately behind the site. Thankfully this road has been closed off for traffic since 1995. Ggantija South can give us a good idea of what many of the Maltese temples would have looked like before they fell into ruin.