Hyde Park obelisk Ventilation tower Sewerage vent modeled on Cleopatra's Needle on the banks of the Thames River in London. It was one of the earliest monuments recording the good works of a Sydney mayor. image Locate -33.874677996363, 151.20986115931 Milestone Constructed 1857 {"name":"Constructed","target":"","target_text":null,"date":{"#markup":"<span class='date'>1857<\/span>"},"date_start":"1857","date_end":"1857"} Name Alternate George Thornton's scent bottle {"name":"Alternate","target":"","target_text":"George Thornton's scent bottle","date":{"#markup":"<span class='date'><\/span>"},"date_start":null,"date_end":null} Colloquial Thornton's Scent Bottle {"name":"Colloquial","target":"","target_text":"Thornton's Scent Bottle","date":{"#markup":"<span class='date'><\/span>"},"date_start":null,"date_end":null} Commemorates Thornton, George {"name":"Commemorated by","target":"Thornton, George","target_text":null,"date":{"#markup":"<span class='date'><\/span>"},"date_start":null,"date_end":null} Position Designer Bell, Edward {"name":"Designer","target":"Bell, Edward","target_text":null,"date":{"#markup":"<span class='date'><\/span>"},"date_start":null,"date_end":null} Type Ventilation tower {"name":"Ventilation tower","target":"","target_text":null,"date":{"#markup":"<span class='date'><\/span>"},"date_start":null,"date_end":null} image image image image image