Are there any notable historical sites in Mallorca that feature niches for human remains?

Yes, Mallorca is home to several notable historical sites that include niches for human remains, reflecting its rich cultural and archaeological history. One prominent site is the necropolis of Son Real, located on the northeastern coast of the island. This ancient burial ground dates back to the Talayotic period and features a complex of burial caves and graves, including niches used for the interment of human remains.

Another significant site is the Roman city of Pollentia, which was founded in 123 BC. Archaeological excavations have revealed numerous graves, including those with niches for the deposition of cremated remains. The island also has several caves, like the Cueva de los Muertos (Cave of the Dead), which contain ancient burial sites with human remains, showcasing the funerary practices of the island's prehistoric inhabitants.

Overall, these sites provide valuable insights into the island's history and the funerary customs of its past societies.