Across from Olympic Park in Seoul's Bangi-dong is Immanuel Methodist Church (임마누엘교회), shaped like a large glass castle.
Churches in Korea tend to be large, gaudy, and ostentatious---more often than not they're capped by neon crosses---but this one first caught my eye back in 2006 because it looks almost exactly like PPG Place, perhaps the most distinctive building in Pittsburgh.
PPG Place opened in 1983 and 1984, Wikipedia says, and the new church building ten years later. The church's website, as far as I can tell, doesn't acknowledge the resemblence or the inspiration. Here are a few pictures from my visit on January 24th.
PPG Place consists of six builidngs, the largest being 40 stories. The church has two buildings, a 16-story education center and a four-story church, and doesn't enclose a courtyard like its Pittsburgh counterpart. Behind the church is an alley full of motels and singing rooms.