We're over 500 now!

I added:
Caves of the Aggtelek Karst and Slovak Karst (c) Protected Planet resized (this is a weird one: Component of Koniar plateau (including Ochtinscká Aragonite Cave) (#6) does not have a core zone but it is shown only as a dot (="cave") on the map in the nomination file)
Vlkolínec
Bardejov
Echmiatsin and Zvartnots
Monastery of Geghard
Budapest
Great Barrier Reef (c) Protected Planet resized
Florence

Will focus on India now

Malaysia was trickier than I expected, so I did Philippines instead. Added:

Vigan
Baroque Churches

Also added:

Leon Cathedral
Tak'alik Ab'aj

Got India almost fully covered yesterday by adding:
Western Ghats (c) Protected Planet (best effort - had to resize it a lot)
Sundarbans National Park (c) Protected Planet
Group of Monuments at Pattadakal
Jaipur City
Historic City of Ahmadabad
Sacred Ensembles of the Hoysalas
Qutb Minar
Sun Temple, Konârak
Buddhist Monuments at Sanchi
Archaeological Site of Nalanda Mahavihara
Chhatrapati Shivaji Terminus

Overall, the Indian maps could be better. Often they seem drawn by hand on a questionable, simplified map, which can be hard to match with the reality shown on a satellite map. Also, sometimes they are not aligned north but tilted, which is confusing.

Additionally, the Western Ghats core zone has proven that many of the previous locations listed on the UNESCO website and ours (copied) were incorrect. You can see it as several are given exactly the same coordinates. Have replaced them as much as I could with the actual ones.

Thanks to Catoplayer for 4 new Spanish ones, including POIs:
Mudejar Architecture of Aragon
Medina Azahara
Salamanca
Burgos Cathedral

I "finished" Sri Lanka (3 don't have a map at all and others are vague)
Sinharaja Forest (c) Protected Planet
Old Town of Galle and its Fortifications
Central Highlands (c) Protected Planet resized

And also added:
Gondwana Rainforests (c) Protected Planet resized
I am considering removing that one again, as its core zone is unclear. It has no official map, but there is a clear one in the 2024 SOC. That one is also used by Protected Planet. However, a few (3?) listed components to the northwest are missing from those maps.

Will continue with France

France has been fairly easy so far. Clear maps and simple WHS, which often look alike (a cathedral, an old town by the river).

Historic Fortified City of Carcassonne
Palace and Park of Fontainebleau
Cistercian Abbey of Fontenay
Chartres Cathedral
Bourges Cathedral
Bordeaux
Arles
Historic Centre of Avignon
Amiens Cathedral
Albi
Paris, Banks of the Seine

More from France:
Palace and Park of Versailles
Abbey Church of Saint-Savin sur Gartempe
Cathedral of Notre-Dame, Former Abbey of Saint-Rémi and Palace of Tau, Reims
Provins
Pont du Gard
Roman Theatre and its Surroundings and the "Triumphal Arch" of Orange
Place Stanislas, Place de la Carrière and Place d'Alliance in Nancy
The Maison Carrée of Nîmes
Historic Site of Lyon
Le Havre

Thanks to _oscar for 12 new ones:

Melaka and George Town (the maps in the nomination file for the extension were used)
Niah Caves
Imperial Palaces of the Ming and Qing
Beijing Central Axis
Xixia Imperial Tombs
Summer Palace
Temple of Heaven
Nan Madol
Gunung Mulu National Park (the map shows several possible extensions, but those never materialized)
Singapore Botanic Gardens
Saint Hilarion Monastery/ Tell Umm Amer
Ancient Jericho/Tell es-Sultan

Did the final doable bits of France:
Lagoons of New Caledonia (c) Protected Planet adjusted
Taputapuatea
Mont-Saint-Michel and its Bay
Vézelay, Church and Hill
Jurisdiction of Saint-Emilion
Chaîne des Puys - Limagne fault tectonic arena (c) Protected Planet
Nice
Gulf of Porto (c) Protected Planet
Pitons, cirques and remparts of Reunion Island (c) Protected Planet resized
Royal Saltworks of Arc-et-Senans
Strasbourg, Grande-Île and Neustadt

Strasbourg and Nice are best effort, since whether things are in or out of the core zone seems to be determined on a house-by-house basis (the facade of A is, the garden shed of B isn't, etc).

Furthermore, I could not finish the following natural WHS of France due to poor maps at Protected Planet:
French Austral Lands (does not take the boundary modification into account) and Pyrenees (northern borders are incorrect). Also, Lagoons of New Caledonia lacks the enclave of the Pines Island (I added it somehow).

I will continue with Italy

There are also land enclaves in the Grand Lagon Nord.

Yes you are correct, all land areas seem to be excluded. Will try to change the map.

Made a start with Italy, quite hard work. Maps are there but cumbersome.

San Gimignano
Piazza del Duomo Pisa
Cathedral, Torre Civica and Piazza Grande, Modena
Ivrea, industrial city
Genoa: Le Strade Nuove and the system of the Palazzi dei Rolli
Crespi d'Adda
Castel del Monte
Botanical Garden (Orto Botanico), Padua
Aquileia