My skyscraper, of which I managed to corrupt the save of v1 halfway through the build. 🤣
Due to the deadline of the contest I didn't finish it like I wanted to, but I never cared to add to it after the deadline had past. I'm not much of a builder. 😅

Once thought I could make a city bigger than Imperial City with the same level of detail.
I was wrong :'D

A zoo with a habitat for every MC mob, modded and vanilla.

I think this. Because besides the structure itself it was needed to draw and paint each segment separately

My most ambitious build ever was The Last Man on Earth for Planet Minecraft's Skyscraper Contest.
It is the largest structure I have ever built in Minecraft and probably ever will. It took me about 18 days to complete. I must have been insane back then xD

A giant library, still under construction after 7 months of continuing construction.

My Arcology probably. The thing took over a year to build... and then I redid most of it and that took another year. Ended up looking pretty cool though.

I've started projects that would be bigger, but they never got completed. I've also done work on some pretty ambitious city builds with some people.

A recreation of Lower Manhattan that is nowhere near complete. I don't work on it much often since I've lately been wasting my time on a survival server. But lately since the server is down, I've been making some progress.

A large underground complex, connecting to mines. Once, on a server years ago, and again on a single player map. Been a bit slow, but worth it when you start to see progress to take shape.

I think it would easily be my replica of the University of Bolton Stadium, home of my team Bolton Wanderers. I started it on February 7, 2015 and finished it on April 4, 2018. I used over 200 images, taken from Google, or through the stadium tours I went on to accurately recreate the interior of the stadium, every box, every suite, every hotel room, even down to the concourses and player areas. I could have finished it in around 13 months had I built it to the standards I finished it with, but I demolished the upper levels in the summer of 2017, box level as well, and rebuilt it all. This resulted in a height increase in some areas, and a more streamlined exterior, meaning that the only piece left untouched was the lower tier seating which is the only remnant of the original build.

My head admin and I designed a 1:1 of the Notre Dame in our community last year using real photos and blueprints.

My island, took about 5 days to terraform, and 3 months to finish hiding goodies and structures along the map.
https://www.planetminecraft.com/project/full-version-deathly-s-beautiful-island-4k-survival-map-1-12-2/

mine is my Amsterdam inspired city called Amberstone City, at first I didn't intended it to become a city. I just wanted to build the museum in Amsterdam but decided to add some surrounding buildings to it since the build lacks detail. I added a lot of houses until I decided to make the city itself. :)

Block Game Mecca, built in survival, built on 2b2t.org, it was completed but it was griefed.

My entire server. I essentially created trees and other assets for a ton of biomes for a 16k by 16k map and biome painted it with as believable shapes and climates as I could. and I made a giant midcentury modern house as spawn! :3 Its taken me at least 2-3 years to get everything to the point it's at now and I still have tons to do.

Probably...Wigglytuff's guild, a location from Pokémon mystery dungeon 2.

Though I have not really thought about uploading it, It's one of the few minecraft projects that I truly put all my heart and effort into.

A city, approximately 28,000 blocks, or 168x168. (survival build)