In Japan, a crowded mountainous country with a fast-ageing society, there is a shortage of final resting places, especially in the big cities.
Burial plots in Tokyo can cost more than $100,000 (£63,318), so some are turning to a cheaper hi-tech solution - multi-storey graveyards.
http://news.bbc.co.uk/2/hi/asia-pacific/8302476.stm