|Covid-19|February - State Library of Victoria in Melbourne, Australia, designed by Joseph Reed
May 15 - Rumeli Feneri, Istanbul, Turkey
August 31 - The Esztergom Basilica in Hungary, designed by Pál Kühnel and József Hild (consecrated)
November 1 - Stamford Water Street railway station in Lincolnshire, England, designed by William Hurst.
Debating chambers of Parliament House, Melbourne, Australia, designed by General Charles Pasley
Landherrnamt, Bremen, Germany, designed by Alexander Schröder in the Neo-Romanesque style
Walnut Hall, Toronto, Canada, designed by John Tully as O'Donohoe Row (demolished 2007)
Future English novelist and poet Thomas Hardy is apprenticed to architect James Hicks in Dorchester, Dorset.
Royal Gold Medal - William Tite.
Grand Prix de Rome, architecture: Edmond Guillaume.
January 21 - Gustaf Nyström, Finnish architect (died 1917)
February 12 - Hendrik Petrus Berlage, Dutch architect (died 1934)
August 5 - Axel Berg, Danish architect (died 1929)
September 3 - Louis Sullivan, American architect, "father of skyscrapers" (died 1924)
December 20 - Reginald Blomfield, English architect (died 1942)
date unknown - Eugène Vallin, French architect, furniture designer and manufacturer (died 1922)
March 20 - Robert Reid, King's architect and surveyor for Scotland from 1827 to 1839 (born 1884)
March 27 - David Laing, British architect (born 1774)
1856 in architecture Wikipedia
The year 1856 in architecture involved some significant architectural events and new buildings.