Buildings and dwellings have been around since..well since some men quit being a nomad. Since then we have built them big and tall as well as short and small.
Humans and their buildings abound in creativity. We build them to live and work in, as well as to worship in. We sleep in them and use them to fly in and out of. We build them in trees and underwater. We put them in outer space and call them a "Skylab". We turn the building of them into a Science and call it Architecture and someone that designs them an Engineer. We even have special names for when they are found in clusters; "cities and towns".
In HIP we use this category to cover houses, monuments, memorials and such. Lighthouses are in here. Also, you will find many city views and parks in "Cityscapes".