I think that the giant of rhodes, the lighthouse of alexandria and the city of palmyra would be nice places to rebuild. Other wonders of the ancient world (like the hanging gardens of babylon) would be cool too. Looking forward to this mod's development.

I don't know what kinds of buildings would fit in with the mod or if I should limit myself to historical things or go off limits. I guess the mod could include rebuilding the "house of wisdom" (Baghdad) if we want to go ahistorical and it could include revising the kremlin if we keep it historical with suggestions.

Venetian arsenal, st. Basil's cathedral, danevirke, Nyhavn, mont saint michel, Intramuros, nidaros cathedral, amelienborg, banaue rice terraces, and sagres school of navigation are good additions in my view.. Anyways thanks for the great mod.

I've updated the planned list, which I'll start working on from the top down.

I'll be trying to add content to the world evenly, focusing on the most played regions first.

@Argacyan I am completely open to non-historical great works, and am also going to add things which were not completed during the EUIV vanilla timespan.
The building requirements are dependant on the year of the game, so if you were to use a mod to extend the game's timespan you would be able to use these other great works.

I'd like to suggest a few buildings, the bonuses that they might provide are totally up for debate

Great Mosque of Djenné (only muslims can do it)

The "Floating gardens" of mexico-tenochtitlan

an a-historical one called "the great house" in the iroquois capital (can only be build by totemists)

replace the current lame-ass modifier that is the forbidden city with a great project

restoring the parthenon in athens and the mausoleum of halikarnassos in mentese

restoration of the pyramids

completion of the Koln cathedral (it was finished in 1473, within the span of the game) same goes for other great cathedrals arround europe, like saint peter's basilica (1626) i know technically we have the "cathedral" building, but that feels more like it's fit for generic buildings than for the historically relevant ones

some more mughal feats, like the red fort would be apreciated too

My suggestion is the winter palace.

maybe castle wawel in cracow (poland)?

There are several grand monuments mentioned in National Ideas of specific countries - for example the Herrenhausen Gardens for Hanover. Is it possible to enable a decision to construct those the moment you unlocked these as ideas?

Maybe an option for the Byzantines to renovate the Hagia Sophia just like the Ottomans. It gives +1 Missionaries and +1 Missionary Strength and +.01 yearly prestige.

sultan ahmed mosque.
grand bazaar 1461. (world's most famous and one of the first and biggest shopping mall)

Suggestions: Hanging Gardens of Babylon, Persepolis, Statue of Rhodes, Refurbish Angkor Wat, Portola Palace, Karakhorum, Porcelain Tower, Grand Canal (China), Temple of Jerusalem, The Duomo, The Roman Coliseum, The Bosphorus bridge, Cristo Redentor

whitehouse?

Maidan-e Naqsh-e Jahan circa 1600. It's the backdrop for the Cradle of Civ title screen.

Something purely Shia/Persian/Iranian. One of UNESCO's World Heritage sites.

https://en.wikipedia.org/wiki/Naqsh-e_Jahan_Square#/media/File:Naqsh-e_Jahan_Square_by_Pascal_Coste_1_Ver2.jpg

if you ever have the time for it, you could make the caspian sea a navigatable sea so you could add the eurasia canal which connects the caspian sea to the black sea

Can you rewrite decision to move your capital in Saint Petersburg to make it a great project? Historically, the whole process of moving the country last about 9 years: city was founded in 1703 and only became capital after eight months of development, in 1712. This thing isn't really shown in the game, which is kind of sad.