An information providing apparatus, as a user terminal, having a display unit, a direction detection unit, a posture detection unit, and an imaging unit, and being connected communicably to a storage unit, the information providing apparatus comprising: a reading unit configured to read dangerous range information indicating a dangerous range of each state of a dangerous object, the dangerous range changing corresponding to the state, and dangerous object position information indicating a position of the dangerous object in a reference coordinate system of a real space, which are stored in the storage unit; a position information obtaining unit configured to obtain apparatus position information in the reference coordinate system, said apparatus position information being calculated from information indicating a position of the information providing apparatus; a direction information obtaining unit configured to obtain direction information in the reference coordinate system, said direction information being calculated from information indicating a direction of the information providing apparatus which is detected by the direction detection unit; a posture information obtaining unit configured to obtain posture information in the reference coordinate system, said posture information being calculated from information indicating a posture of the information providing apparatus which is detected by the posture detection unit; a determination unit configured to determine a visual field of the information providing apparatus based on i) the apparatus position information obtained by the position information obtaining unit, ii) the direction information obtained by the direction information obtaining unit, iii) the posture information obtained by the posture information obtaining unit, and iv) visual field information of a user which is defined in advance; a video obtaining unit configured to obtain a video imaged by the imaging unit; and a display control unit adapted to determine whether a dangerous object is included in the determined visual field of the information providing apparatus based on the read dangerous object position information, determine, by analyzing the obtained video, coordinates in the reference coordinate system of a positioning reference that is added to the determined dangerous object, calculate conversion information correlating conversion between the reference coordinate system and a coordinate system of a display space, generate a dangerous range image with the positioning reference of the determined dangerous object being an origin, on the basis of i) said determined coordinates in the reference coordinate system of the positioning reference, ii) said read dangerous range of each state, and iii) said calculated conversion information, and display the generated dangerous range image on the display unit. a reading unit configured to read dangerous range information indicating a dangerous range of each state of a dangerous object, the dangerous range changing corresponding to the state, and dangerous object position information indicating a position of the dangerous object in a reference coordinate system of a real space, which are stored in the storage unit; a position information obtaining unit configured to obtain apparatus position information in the reference coordinate system, said apparatus position information being calculated from information indicating a position of the information providing apparatus; a direction information obtaining unit configured to obtain direction information in the reference coordinate system, said direction information being calculated from information indicating a direction of the information providing apparatus which is detected by the direction detection unit; a posture information obtaining unit configured to obtain posture information in the reference coordinate system, said posture information being calculated from information indicating a posture of the information providing apparatus which is detected by the posture detection unit; a determination unit configured to determine a visual field of the information providing apparatus based on i) the apparatus position information obtained by the position information obtaining unit, ii) the direction information obtained by the direction information obtaining unit, iii) the posture information obtained by the posture information obtaining unit, and iv) visual field information of a user which is defined in advance; a video obtaining unit configured to obtain a video imaged by the imaging unit; and a display control unit adapted to determine whether a dangerous object is included in the determined visual field of the information providing apparatus based on the read dangerous object position information, determine, by analyzing the obtained video, coordinates in the reference coordinate system of a positioning reference that is added to the determined dangerous object, calculate conversion information correlating conversion between the reference coordinate system and a coordinate system of a display space, generate a dangerous range image with the positioning reference of the determined dangerous object being an origin, on the basis of i) said determined coordinates in the reference coordinate system of the positioning reference, ii) said read dangerous range of each state, and iii) said calculated conversion information, and display the generated dangerous range image on the display unit.