Sansiao Gallery in Central is a Japanese gallery specialising in post-war American art, curating works that are "unique, rare and distinctive" through themed exhibitions held year-round. Past showcases have ranged from Andy Warhol's pop-art pieces to photography exploring nudity and rare images of Hollywood icons like Marilyn Monroe. Address: Room 104, Wilson House, 19–27 Wyndham Street, Central; free entry.