"The Unseen" is a backlit channel-letter sign affixed to the north façade of the building. "The Unseen" is over fifty-five feet and four inches high and composed of mirror-finished stainless steel letters adhered to the top seven floors of the building in a vertical form reading top to bottom.

Vancouver based artist Ron Terada often produces works that make use of language, or take text as their primary subject matter. His artistic practice is influenced and shaped by a history of conceptual art as it relates to the processes and strategies of mass media. Terada's interest in modes of advertising and public communication is present in his commissioned work for 601-627 Main Street. "The Unseen" is a small monument to the perserverance of historical memory, and perhaps, to the many unseen labours that contributed to the making of today's Chinatown. "The Unseen" will facilitate excitement, curiosity, contemplation and dialogue, for both visitors and the community, for years to come.