Struve Geodetic Arc I’ve listed “in” Finland, since it has 6 points (beating Belarus by one and Sweden, Norway and Ukraine by two). (list). It was also originally proposed to the world heritage committee by Aarne Veriö and Seppo Härmälä of Finland and the National Land Survey of Finland launched the first point in the renewed Arc. (1) I guess the most important points are still the endpoint in Hammerfest and Struve’s first point of the Arc in The Old Tartu Observatory.
The Belfries of Belgium and France I’ve listed in France for now since the Belgian site was put in Brugge and then renamed to “The Belfry Tower” therefore only refering to that specific one.
The Frontiers of the Roman Empire I’ve Listed “in” England. Since Hadrian’s wall was transcribed to the heritage list earlier and is more impressive and better preserved than the GermanLimesGermanicus
Fertö / Neusiedler See, I’ve listed “in” Austria, since of the lake’s 315 km², 240 km² are located on the Austrian side (3/4) and 75 km² on the Hungarian and most people visit the Austrian side.
The old growth forest of Belovezhskaya Pushcha / Bialowieza Forest I’ve listed “in” Belarus since the protected area is about ten times larger on the Belarus side.
Mont Perdu & the Pyrénées I’ve listed “in” Spain, since Mt. Perdu’s summit is in Spain and since it’s easier to reach it from Spain, as the northern side is much steeper.
The Kvarken Archipelago / The High Coast I’ve listed “in” Finland
Caves of Aggtelek Karst and Slovak Karst
I’ve listed “in” Slovakia.
The Curonian Spit I’ve listed “in” Lithuania, rather than Russia, though it’s a little bigger on the Russian side.
The Russians have recently opened an oil-rig just off the protected area…
Muskauer Park / Park Muzakowski I’ve listed as German.