The largest church in the United States is a place of subtle power, and some surprises. Nestled among the stone and polished wood of the Cathedral of St. John the Divine, on the Upper West Side of New York City, are statues of Gandhi, Einstein, and Martin Luther King, Jr. There is a triptych honoring the public artist Keith Haring and a poet's corner celebrating Thoreau, Whitman, and Poe. The altar offers tributes not just to Christianity, but also to Islam, Judaism, and "Eastern wisdom traditions."