The Redpath Museum houses collections of interest to ethnology, biology, paleontology, and mineralogy/geology. The Museum of Peoples and Cultures is a museum of archaeology and ethnology. Its staff includes leading experts in Canadian history, archaeology, ethnology, and folk culture. Freud's works in relation to contemporary philosophy, linguistics, ethnology, biology, and topology. Scientists from the Institute of Archaeology and Ethnology of Novosibirsk have investigated the cave. Nowadays, the palace hosts the National Museum, specialising in Natural History, Archaeology, and Ethnology. The remains are held by the Institute of Ethnology and Anthropology of R.A.S., Moscow. It is the combination between ethnology and linguistics. They intended it as a collaboration among the fields of philosophy, ethnology and sociology. The Lutz Children's Museum has participatory exhibits covering art, history, science, nature and ethnology. The museum then featured exhibits on history, ethnology and arts of Singapore and the region. A padmasana exists in Hamburg, Germany in front of the Museum of Ethnology, Hamburg. It was integral to the early conceptions of ethnology. "Jati" were the basis of caste ethnology during the British colonial era. It is now on display in the National Museum of Ethnology in Leiden.