Thanks for submitting the Sanxingdui review, Zoe. I should have written one a long time ago myself, definitely a thumbs up.

Regarding the 3rd location: this website names an address (No.58 Shangye Street, Qingyang District, Chengdu City), which seems to be at a different spot. Tripadvisor has it at yet another location. At none of the three locations within Chengdu I find a hint in Google maps that a museum is located there. How sure are you about the coordinates you shared?

Looking forward to your addition for the Shu state reviews!

As for the coordinates, they are from the WHS documents. I went around the block of Shangyejie on Baidu map and there is no sign of a museum. So I suppose leave that blank until someone knows it for sure.

I was there in 2007! But I do have my pics and diary in Dutch so can fabricate something.

Here are the coordinates of the 12 locations of the Porticoes of Bologna TWHS.
The source is the Executive Summary, the T-list entry does not provide any information on the selected components.

01 Portici residenziali Santa Caterina 44.491389, 11.332778
02 Piazza porticata di Santo Stefano 44.492222, 11.348056
03 Strada porticata di Galliera 44.497222, 11.341667
04 Edificiio porticato del Baraccano 44.485556, 11.354722
05 Portici commerciali del Pavaglione e dei Banchi 44.492500, 11.343333
06 Portico devozionale di San Luca 44.485278, 11.301667
07 Portici accademici di via Zamboni 44.496667, 11.351389
08 Portico della Certosa 44.492648, 11.311057
09 Portici di piazza Cavour e via Farini 44.491111, 11.344167
10 Portici trionfali di strada Maggiore 44.492222, 11.351667
11 Edificio porticato del quartiere Barca 44.495278, 11.284722
12 Edificio porticato del MAMbo 44.502500, 11.336667

Thanks Hubert, I will add them! I guess one really needs to zoom in to see the different spots

When I looked at the Angolan TWHS, I noticed that a couple of coordinates are not correct. The location of Fortress S.Francisco do Penedo is actually Fortress S.Pedro da Barra.
Here the correct coordinates, from Wikipedia:

Fortress of Sao Francisco do Penedo -8.8014, 13.25028
Fortress of Sao Pedro da Barra -8.773552, 13.286174

These two are slightly incorrect:

Church of Nossa Senhora da Victoria -9.628176, 14.255169
Fortress of Massanganu -9.629411, 14.256533

Updated!

A few corrections of coordinates:

Bangladesh
Halud Vihara 24.932665, 88.971389
Jaggadala Vihara 25.159193, 88.887615

Benin
Village souterrain d'Agongointo-Zoungoudo 7.188980, 2.083646
La ville de Porto-Novo: quartiers anciens et Palais Royal: not really wrong, but this are the coordinates of the Palais Royal:
6.46955, 2.624741

La ville d'Ouidah: Google Maps identofoes some of the places that are mentioned in the link and in your introduction
Place ChaCha 6.356528, 2.084940
Tree of Forgetfulness 6.348269, 2.086753
Slave Cemetery Memorial 6.34004, 2.089222
Gate of No Return 6.324199, 2.089513
Maison du Brésil 6.356126, 2.075569

We've been a bit drunk when adding these I guess. They are from wiki and they are a few km off

They are marked in Google Maps. Sometimes it is easier than you think. But maybe they have been added after our coordinates project.

Recommend the Google location northwest of what we have for Ivvavik instead of the outlines of the park we currently use.
https://www.worldheritagesite.org/tentative/id/1939

"Locations" could also be updated with the name.

both done

Even though the area of the Ringed Seal Archipelagos of Lake Saimaa TWHS is not yet very clear, I think our current location is not correct. It about 100 kilometres too much south. The description tells that the area contains the Linnansaari and Kolovesi National Parks and we know that these are the core areas of Saimaa ringed seals. So, I would put the location somewhere north of the Linnansaari island, for example 62.123654, 28.476443

Updated!

When working on the French TWHS I noticed that our locations of Carcassonne and Albi are slightly outside the inscribed area.
Better are the following:
Albi: 43.928646, 2.143461
Carcassonne: 43.206961, 2.364539