Monumental is including SSSIs in the UK

[RichardNevell]

The competition is restricted to Listed Buildings and Scheduled Monuments, but Sites of Special scientific Interest are also displaying on the map. eg: Cleaver Heath Nature Reserve https://maps.wikilovesmonuments.org/map?c=53.3318:-3.1175:17

https://maps.wikilovesmonuments.org/object/5131004

[secretlondon]

From trying to unpick this - it's pulling the list from Wikidata. That entry has (https://www.wikidata.org/wiki/Q5131004) heritage designation set as SSI. It might be just checking for a statement called heritage designation.