Editing 1858 in architecture (section)

==Buildings and structures==
{{See also|Category:Buildings and structures completed in 1858}}
===Buildings===
[[File:Leeds Rathaus.jpg|thumb|[[Leeds Town Hall]]]]
[[File:Royal Opera House and ballerina.jpg|thumb|[[Royal Opera House]], Covent Garden]]
* The [[Hamilton Mausoleum]] in [[Scotland]] is completed to an 1842 design by [[David Hamilton (architect)|David Hamilton]] by [[David Bryce]] with sculptor [[Alexander Handyside Ritchie]].
* [[Saint Isaac's Cathedral]] in [[Saint Petersburg]] (Russia) is completed to an 1818 design by [[Auguste de Montferrand]].
* [[Trinity Church (Oslo)]] in Norway, designed by Alexis de Chateauneuf and [[Wilhelm von Hanno]], is consecrated.
* New [[Doncaster Minster|parish Church of St George, Doncaster]], Yorkshire, England, designed by [[George Gilbert Scott]], is consecrated.
* [[Wesley Church, Melbourne]], Australia, is opened.
* [[Leopoldstädter Tempel]] (synagogue) in [[Vienna]], designed by [[Ludwig Förster]], is built.
* [[Grand Synagogue of Aden]] is built.
* [[Church of the Resurrection in Katowice]] (Poland) is completed.
* [[Fishergate Baptist Church]] in [[Preston, Lancashire]] (England), designed by [[James Hibbert]] and Nathan Rainford, is completed.
* [[Leeds Town Hall]] in Yorkshire (England), designed by [[Cuthbert Brodrick]], is completed.
* [[Ontario County Courthouse]] in [[Canandaigua (city), New York|Canandaigua, New York]], is built.
* [[United States Customhouse and Post Office (Bath, Maine)]] is built.
* The [[Liverpool, London and Globe Building]] (insurance office) in [[Liverpool]] (England), designed by [[Charles Robert Cockerell|C. R. Cockerell]], is completed.
* The [[Lloyds Bank, Bristol|West of England and South Wales Bank]] in [[Bristol]] (England), designed by Bruce Gingell and T. R. Lysaght, is completed.
* The rebuilt [[Royal Opera House]], [[Covent Garden]], London, designed by [[Edward Middleton Barry]], is completed.
* [[St James's Hall]] (concert hall), [[Piccadilly]], London, designed by [[Owen Jones (architect)|Owen Jones]], is opened.
* [[Hownes Gill Viaduct]] in [[County Durham]], England, designed by [[Thomas Bouch]], is opened.
* New westwork at [[Speyer Cathedral]] (Bavaria), designed by [[Heinrich Hübsch]], is completed.
* Construction of [[Woodchester Mansion]] (Spring Park) in [[Gloucestershire]], England, designed by [[Benjamin Bucknall]], is begun; work is abandoned in the 1870s.