Palm house

Especially in English-speaking countries outside the British Isles, these are often called conservatories, in the UK mainly a term for small glass structures attached to houses.

The large example, completed in 1848, in Kew Gardens, London was arguably the first greenhouse to be built on this scale.

[5] Elsewhere there are the Franklin Park Conservatory in Columbus, Ohio, the Royal Greenhouses of Laeken in Brussels, the Palmenhaus Schönbrunn in Vienna, and many others.

Parts of the iron technology there were borrowed from shipbuilding, so the resemblance of many designs to upturned ships in not entirely coincidental.

It was constructed by iron-founder Richard Turner, who would later build the Palm House at Kew in 1848, to a design by Decimus Burton; this is 62 feet high and 362 long.