Place Viger in Montreal symbolized an age of glamorous travel and cosmopolitan ambition. Constructed in 1898, the train station was done up like a French chateau. But time wasn't kind to the building and over the decades, it fell into disrepair (thanks, Great Depression). Today it's the site of a $250-million mixed-use redevelopment project that seeks to revive the abandoned structure. Lightspeed, a point-of-sale software company, is one of the newest tenants and it enlisted local firm ACDF Architecture to overhaul three floors within Place Viger for its global headquarters. The concept mixes punchy graphics, whimsical features, and an historic framework to forge a minimalist office that feels sophisticated, not overwrought.