Categories
The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Gravitational singularities (1 member)
- Hatnote templates (1 member)
- Heart (1 member)
- Hell Creek Formation (1 member)
- High-speed rail templates (2 members)
- High-speed trains (1 member)
- Highest points of Chinese provinces (1 member)
- Highest points of countries (1 member)
- History of Detroit (1 member)
- Human anatomy (1 member)
- Human anatomy by organ (1 member)
- Human head and neck (1 member)
- Human mouth anatomy (1 member)
- Hydrology (1 member)
- IPA language templates (1 member)
- IUCN Red List least concern species (1 member)
- Infobox templates (1 member)
- Inline cleanup templates (1 member)
- Inline interwiki link templates (1 member)
- Inline templates (2 members)
- Internal link templates (1 member)
- International Space Station (3 members)
- International mountains of Asia (1 member)
- International science experiments (1 member)
- International space agreements (1 member)
- Internet Archive templates (1 member)
- Introduced mammals of Australia (1 member)
- Japan rail transport inline templates (5 members)
- Japan rail transport templates (1 member)
- Japan transport templates (1 member)
- Japan–United States relations (1 member)
- Joint ventures (1 member)
- Lance Formation (1 member)
- Land art (1 member)
- Landforms of Coconino County, Arizona (1 member)
- Landforms of Mohave County, Arizona (1 member)
- Landforms of Navajo County, Arizona (1 member)
- Language-related modules (1 member)
- Language tag handling templates (1 member)
- Language templates (2 members)
- Laramie Formation (1 member)
- List formatting and function templates (1 member)
- Lithosphere (1 member)
- Long churches in Norway (1 member)
- Low-wing aircraft (1 member)
- Lua-based templates (21 members)
- Maastrichtian dinosaurs (1 member)
- Mammals described in 1758 (1 member)
- Mammals of the Arctic (1 member)
- Manifolds (1 member)