Lego has done a great job with its architecture theme. One of the best models is the Lego United Nations Headquarters (21018). Some of these models are small, and have been shrunk down. The UN Headquarters is one of the most successful examples of this. Even though it is small, a good amount of detail is still present. If you have ever wondered what a Lego architecture set would look like if money and piece count didn’t matter, then this United Nations Headquarters by Spencer_R is perfect. This is a spot-on recreation of the UN Headquaters and has recently been updated with the newer trans blue pieces. The flags and adjoining park have been recreated perfectly and give this Lego MOC a sense of scale.
Check out this Lego United Nations Headquarters, by Spencer_R, over on Flickr: https://www.flickr.com/photos/51130204@N04/14021080829/