Abstract: An embedded unit contains a microprocessor and memory for storing video, audio, photograph, and written digital data pertaining to a monument. The microprocessor, when actuated by a visitor, communicates through a two-way radio transceiver to a visitor carried transceiver. The embedded unit includes a long-life battery and is activated only upon a visitor approaching the marker and momentarily contacting an activation switch or passing an activating dongle adjacent the embedded unit for initiating power to the embedded unit for the transfer of data. A Bluetooth® receiver, such as a cellular phone having Bluetooth® capability, a PDA with Bluetooth®, or other Bluetooth® device, is employed for reading and/or storing information contained in the embedded unit.