Reference

Based on the search results, there is no specific building mentioned that was completed in the year 2000 and is over 200 meters tall. The search results provide information about buildings completed in other years, such as the Burj Khalifa in Dubai, which became the tallest building in 2010, and various statistics about buildings over 200 meters completed in different years, but none specifically for the year 2000. It appears that there might not be a well-known building that fits the criteria of being completed in 2000 and exceeding 200 meters in height.