The Alberta Legislature Building was built between 1907 and 1913 in the Beaux
Arts style at the same time as the much larger Saskatchewan and Manitoba legislatures
by architects Allan Merrick Jeffers and Richard Blakey. Jeffers may have been
influenced by the state capitol in Rhode Island, where he was a student. The style
was originally associated with the École des Beaux-Arts in Paris and was fashionable
in North America between 1895 and 1920. The use of Greek, Roman, and Egyptian
elements was considered appropriate for public buildings as they suggested power,
permanence, and tradition. Beaux Arts buildings are characterized by a large central
dome rising above a spacious rotunda, a symmetrical T-shaped plan, doors and windows
decorated with arches or lintels, and a portico supported by massive columns.

(Source: Wikipedia)