# Geometry - [Buildings](https://cityweft.gitbook.io/docs/geometry/buildings.md): Buildings are the main geometry type in Cityweft API. Meshes contains an array of meshes representing the building or its parts, which may include roofs. - [Topography](https://cityweft.gitbook.io/docs/geometry/topography.md): Topography is a core geometry type in Cityweft API. It consists of meshes or elevationMaps that represent the terrain surface. - [Infrastructure](https://cityweft.gitbook.io/docs/geometry/infrastructure.md): Infrastructure nodes represent individual elements placed at precise locations within the urban environment. - [Surface](https://cityweft.gitbook.io/docs/geometry/surface.md): Surfaces are meshed geometries representing area features such as zones and pathways. They are delivered as optimized meshes aligned with the terrain. - [Barriers](https://cityweft.gitbook.io/docs/geometry/barriers.md): Barriers are meshed geometries representing vertical structures such as fences, walls, and other enclosing or dividing elements. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://cityweft.gitbook.io/docs/geometry.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.