lava flows like water, I made the maze the same from both sides, filling the center with sand as I went so I had something to stand on, when it was done (much later) sand falls so I was able to just walk along the bottom removing sand and letting the higher ones fall to my level, I had already installed a ladder at each end so I went up and poured lava in all the way along, it naturally falls down the center, and I left a space for it at the bottom so it didn't overflow and leak out - there is a glass floor above the lava and a safety rail all around the top
thought it wasn't intentional, it's in the far south-west of the map - Kev's wonderfull railway will get you close if you head for "JON'S EVIL LAIR" (and if it works right)
Markus Persson - 12:09 - Public
I see Jens has checked in a bunch of fixes for 1.7.2. As soon as he gets back from lunch, I will discuss with him, then I suspect a very imminent update.