Doors Open Milwaukee returns to the city Sept. 24-25 and will offer a behind-the-scenes tour of a stunning Frank Lloyd Wright-designed church on the city's northwest side, among hundreds of other spaces. Learn about Annunciation Greek Orthodox Church on this week's Urban Spelunking, and stick around to the end to hear why the KGB was seen on site at the church's consecration.<br /><br />Read more: <a href="https://onmilwaukee.com/articles/annunciation-greek-frank-lloyd-wright" rel="noopener">https://onmilwaukee.com/articles/annunciation-greek-frank-lloyd-wright</a>

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Every week, Radio Milwaukee’s Nate Imig and OnMilwaukee’s Bobby Tanzilo dig into the buildings and architectural features that help retain the city’s sense of history while it builds for the future.