/usr/include/boost/geometry/multi/geometries/ is in libboost1.55-dev 1.55.0+dfsg-3.
This file is owned by root:root, with mode 0o755.
..
/usr/include/boost/geometry/multi/geometries/concepts/
/usr/include/boost/geometry/multi/geometries/concepts/check.hpp
/usr/include/boost/geometry/multi/geometries/concepts/multi_linestring_concept.hpp
/usr/include/boost/geometry/multi/geometries/concepts/multi_point_concept.hpp
/usr/include/boost/geometry/multi/geometries/concepts/multi_polygon_concept.hpp
/usr/include/boost/geometry/multi/geometries/multi_geometries.hpp
/usr/include/boost/geometry/multi/geometries/multi_linestring.hpp
/usr/include/boost/geometry/multi/geometries/multi_point.hpp
/usr/include/boost/geometry/multi/geometries/multi_polygon.hpp
/usr/include/boost/geometry/multi/geometries/register/
/usr/include/boost/geometry/multi/geometries/register/multi_linestring.hpp
/usr/include/boost/geometry/multi/geometries/register/multi_point.hpp
/usr/include/boost/geometry/multi/geometries/register/multi_polygon.hpp