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In page St. Thomas Church, Leipzig:
"In the 20th century, sulfur emitted from nearby coal mines, and other pollutants in the atmospheric air caused the deterioration of exterior stonework and statuary, and even of interior Gothic paintings. In addition, the roof structure suffered from damage due to insects and moisture. For these reasons, the church was listed in the 2000 World Monuments Watch by the World Monuments Fund.[4] Repairs were swiftly undertaken with financial support from the Fund and from American Express.
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