"We don't know the frequency, so we need to keep tuning and trying different ones, like searching for a good radio station ...

With a 1500lbs magnet in hand, I headed to one of the most notorious bridges around—despite the warnings. From strong currents to sketchy surroundings, this magnet fishing trip was anything but safe.

Armed with a 1500lbs pull magnet, I hit the bridge expecting a decent haul—but what I found blew every past trip out of the water. Heavy, mysterious, and totally unexpected, this was hands-down my ...