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Tulum Archaeological Zone, Quintana Roo, Mexico. Is an ancient walled Mayan city, built facing the Caribbean Sea. Famous for its main temple, "El Castillo,"
Liangzhu Ancient City Ruins Park Hangzhou Zhejiang China
Netherlands civil engineering bridge structure between Dutch city Gouda and Gouderak, Gouderakse brug over Hollandse Ijsel transportation infrastructure connection on sunny day with cars
Excavator dig trench on construction site. Laying external sewer pipes in trench. Sewage drainage for building. Civil infrastructure pipe, water lines, sanitary storm. Crane on building construction.

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