The Hilton Athens is a historic hotel structure in Athens, Greece, on Vassilissis Sofias Avenue, within the Hilton Area, adjacent to the Kolonaki and Pangrati neighbourhoods. Opened in 1963, it closed for renovations in January 2022 and will reopen in 2025 as Conrad Athens The Illisian, with its hotel portion reduced and new luxury residences under the Conrad and Waldorf... Wikipedia