Given the question: Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Istana Melawati - Istana Melawati is the second national palace of Malaysia's Yang di-Pertuan Agong in Putrajaya after the Istana Negara Kuala Lumpur. It serves as a royal retreat for the Yang di-Pertuan Agong.
The answer is:
Building