/usr/include/ is in libvtk6-qt-dev 6.3.0+dfsg1-11build1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/vtk-6.3/QVTKWidget2.h
/usr/include/vtk-6.3/
/usr/include/vtk-6.3/QFilterTreeProxyModel.h
/usr/include/vtk-6.3/QVTKApplication.h
/usr/include/vtk-6.3/QVTKGraphicsItem.h
/usr/include/vtk-6.3/QVTKInteractor.h
/usr/include/vtk-6.3/QVTKInteractorAdapter.h
/usr/include/vtk-6.3/QVTKInteractorInternal.h
/usr/include/vtk-6.3/QVTKPaintEngine.h
/usr/include/vtk-6.3/QVTKWidget.h
/usr/include/vtk-6.3/QVTKWin32Header.h
/usr/include/vtk-6.3/vtkEventQtSlotConnect.h
/usr/include/vtk-6.3/vtkGUISupportQtModule.h
/usr/include/vtk-6.3/vtkGUISupportQtOpenGLModule.h
/usr/include/vtk-6.3/vtkGUISupportQtSQLModule.h
/usr/include/vtk-6.3/vtkQtTableView.h
/usr/include/vtk-6.3/vtkGUISupportQtWebkitModule.h
/usr/include/vtk-6.3/vtkQtAbstractModelAdapter.h
/usr/include/vtk-6.3/vtkQtAnnotationLayersModelAdapter.h
/usr/include/vtk-6.3/vtkQtAnnotationView.h
/usr/include/vtk-6.3/vtkQtConnection.h
/usr/include/vtk-6.3/vtkQtDebugLeaksModel.h
/usr/include/vtk-6.3/vtkQtDebugLeaksView.h
/usr/include/vtk-6.3/vtkQtInitialization.h
/usr/include/vtk-6.3/vtkQtLabelRenderStrategy.h
/usr/include/vtk-6.3/vtkQtListView.h
/usr/include/vtk-6.3/vtkQtRecordView.h
/usr/include/vtk-6.3/vtkQtRichTextView.h
/usr/include/vtk-6.3/vtkQtSQLDatabase.h
/usr/include/vtk-6.3/vtkQtSQLQuery.h
/usr/include/vtk-6.3/vtkQtStringToImage.h
/usr/include/vtk-6.3/vtkQtTableModelAdapter.h
/usr/include/vtk-6.3/vtkQtTableRepresentation.h
/usr/include/vtk-6.3/vtkQtTimePointUtility.h
/usr/include/vtk-6.3/vtkQtTreeModelAdapter.h
/usr/include/vtk-6.3/vtkQtTreeRingLabelMapper.h
/usr/include/vtk-6.3/vtkQtTreeView.h
/usr/include/vtk-6.3/vtkQtView.h
/usr/include/vtk-6.3/vtkRenderingQtInstantiator.h
/usr/include/vtk-6.3/vtkRenderingQtModule.h
/usr/include/vtk-6.3/vtkViewsQtModule.h