A REAL tourist trap
Due to the hot-water heating system in UB's city buildings and dwelling blocks, underground pipes make UB into some kind of Swiss cheese. The pipes lead hot water into radiators from the power plants at the outskirts of town.Due to accidents, lack of maintenance and with the swelling vagrant population and some 3-5000 street kids, many of the lids and closures to this underground system have been broken - in part to gain access to warm underground temporary living quarters.These are deep holes that could destroy you one dark night when you are not watching your step... Be careful so you do not fall in. Bring a torch light for dark nights and surprise electricity outings.
