Brutalistic Architectures.

Béton brut: Architectural concrete left unfinished or roughly-finished after pouring and left exposed visually. It flourished as a part of the brutalist architecture of the 60s and 70s and influenced to create structural expressionism as steel structures became more advanced and practical. 

Boston City Hall, Massachusetts

(December 2011)

Typified by pure geometrical forms clad with sleek curtain- an articulated structure that expressed the internal functions of the buildings in rugged, cantilevered concrete forms. Hovering over the broad brick plaza, the City Hall was designed to create an open and accessible place for the city's government. The architects sought to create a bold statement of modern civic democracy- which was, at that time, in desperate need of reinvention, investment, and vision. (Wikipedia)

J. Edgar Hoover Building, Washington D.C.

(December 2011)

University of Toronto - Robarts Library, Ontario

(March 2012)

Its towering main structure rests on an equilateral triangular footprint and features extensive use of triangular geometric patterns throughout. The elevation is mostly concrete, albeit differing in textures and directionality: smooth concrete lines the facade in a horizontal manner, the rough concrete lining vertically. The steel-framed windows are situated onto the bays protruding from the facade, which remind one of the towers overhanging in medieval castle architecture. (Wikipedia)

Some of the Ottawa's well known brutalistic architectures include: the National Defence Building (November, 2010), uOttawa - Morrisset Library, Ottawa Public Library Main Branch (Metcalfe Street), Lester B. Pearson Building (Sussex Drive), the National Art Centre, and Ottawa Courthouse (December, 2010).