The mutation of a concrete mastodon, the Pantin Administrative Center (1969) into the French National Dance Center (2004)... Or the successful meeting of Brutus and ballerinas. An architectural overhaul that necessarily owes its success to the monumental strength of the original building.

Vauban's "Queen of the citadels" was the model for military construction all over France. Built between 1668 and 1671, its exacting and simple design has made it a source of inspiration for major contemporary architects.

In 2006, the company Vitra asked the "Herzog & de Meuron" agency to create a building for it's "Home" collection. The showroom consists of a pile of 12 houses, slotted together to produce surprising spaces.

Started in 1247, the Cologne Cathedral was completed in 1880 after a 300 year break in the work carried out on it. The Cathedral, which embodies the unity of Germany, is both a Gothic archetype and one of the most magnificent buildings completed during the 19th century.

In the Palmeiras district of São Paulo, early 20th century former factory workshops are aligned with strange blocks of cement that stand tall, facing the city. Could the "Citadel of Leisure" be a major work of "Architecture Povera"?

Poised on the shore of Lake Geneva, a wave of cement and glass has inspired many metaphors, from a slice of Emmental cheese to a piece of molecular fabric. The building, a space dedicated to knowledge, resembles nothing else before it.