- Jericho, West Bank, Palestine1 objects
- Johnstone Strait, British Columbia, Canada1 objects
- Kameiros (ancient city), Rhodes2 objects
- Katimin (historic village), Klamath River, Siskiyou County1 objects
- Klamath Lake, Klamath County, Central Oregon1 objects
- Klamath River, Siskiyou County, California1 objects
- Klazomenai (ancient city), Ionia2 objects
- Laguna, Cibola County, New Mexico1 objects
- Lake Sierra Blanca, Apache County, Arizona1 objects
- Las Monjas, Uxmal, Yucatán11 objects
- Lazio, Central Italy3 objects
- Lifuka, Ha'apai Island Group, Tonga1 objects
- Luzon Island, Luzon island group, Philippines20 objects
- Malacañang Palace, Manila, Philippines1 objects
- Malaita Island, Solomon Islands1 objects
- Manila, Manila (Metropolitan), Luzon Island2 objects
- Marcahuamachuco, Huamachuco District, Northern Peru2 objects
- Massachusetts1 objects
- Melanesia49 objects
- Melville Island, Arnhem Land, Northern Territory1 objects