Algae grown on dairy effluent cuts mineral fertiliser use by 25%
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Volunteers search for missing soldiers 75 years after Second World War
Volunteers work to dig up bodies in Klessin, Germany to bring closure to families whose loved ones have only ever been a statistic.
Grave of top Nazi official dug up in Berlin
Heydrich's grave was unmarked, suggesting the perpetrators had insider knowledge.
How do you dig the perfect grave? Hungarian gravediggers will show you
Gravediggers in Hungary have been competing to win the prize for the best-dug grave.
Watch: Israel set to open world's first underground cemetery
Far below Jerusalem's main cemetery of Har Hamenuchot, a new underground burial site is being built. It will contain 23,000 new graves along a mile of tunnels.
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Month of The Dead: Exploring the darker side of London's history
In Britain, Londoners have been celebrating the darker side of their city's history with the annual Month Of The Dead event.
Archaeologists discover new tomb in Giza
The tomb is believed to belong to a high-ranking female official from the Fifth Dynasty.