/usr/include/boost/geometry/views/ is in libboost1.65-dev 1.65.1+dfsg-0ubuntu5.
This file is owned by root:root, with mode 0o755.
..
/usr/include/boost/geometry/views/box_view.hpp
/usr/include/boost/geometry/views/closeable_view.hpp
/usr/include/boost/geometry/views/detail/
/usr/include/boost/geometry/views/detail/boundary_view/
/usr/include/boost/geometry/views/detail/boundary_view.hpp
/usr/include/boost/geometry/views/detail/boundary_view/implementation.hpp
/usr/include/boost/geometry/views/detail/boundary_view/interface.hpp
/usr/include/boost/geometry/views/detail/indexed_point_view.hpp
/usr/include/boost/geometry/views/detail/normalized_view.hpp
/usr/include/boost/geometry/views/detail/points_view.hpp
/usr/include/boost/geometry/views/detail/range_type.hpp
/usr/include/boost/geometry/views/detail/two_dimensional_view.hpp
/usr/include/boost/geometry/views/identity_view.hpp
/usr/include/boost/geometry/views/reversible_view.hpp
/usr/include/boost/geometry/views/segment_view.hpp