When 'through' is used as a preposition, it can have (at least) both of the following meanings:
1. from one end to another, as in walk through the tunnel
2. all over the place, as in wander through the forest
Can through have the second meaning, too, when used as an adverb, i.e. without a complementation? For instance, wander through in the following passages:
The Tate Modern in London is Europe's most disappointing museum. I watched as school kids almost ran through it, finding absolutely nothing to attract their gaze. A couple wandered through and paused at each piece, giving them that serious, meaningful look.
Drug dealers openly peddled their wares-OxyContin, crack cocaine, heroin-on the sidewalk as tourists wandered through and schoolchildren walked home.