Louis Bonnier & Élisée Reclus - Globe Terrestre, 1898

Key figure in architectural transition, Louis Bonnier (1856–1946) trained at the École des Beaux-Arts before moving away from strict academicism. He emerged in a rapidly changing Paris, advocating a new rationalism at the turn of the 20th century to rethink urban space. He transformed the city through the 1902 regulations, freeing façades from Haussmannian rigidity through the use of projections.

A technical pioneer, he elevated reinforced concrete, as seen in the Butte-aux-Cailles swimming pool, combining Art Nouveau ornamentation with constructive honesty to maximize natural light. His legacy is that of a hygienist and socially oriented urbanism.

A forerunner of the Modern Movement, he permanently reshaped the capital. His vision of airy architecture serving the urban dweller still resonates strongly in today’s debates on sustainable cities.

Élisée Reclus (1830–1905), libertarian geographer, marked the 19th century through his commitment, from the barricades of the Paris Commune to exile. Rejecting academicism, he advocated a sensitive, lived-in geography, combining scientific rigor with political idealism. He revolutionized the discipline by stating that “man is nature becoming conscious of itself.”

This vision culminated in the Grand Globe project for the 1900 Exposition. Designed with architect Louis Bonnier, this unfinished 60-meter monument was intended to offer a representation of the Earth without borders or distortion.

Regarded as a father of social ecology, Reclus anticipated humanity’s impact on the environment. His writings today resonate as lucid calls to inhabit the world in harmony and solidarity in the face of climate challenges.