Explore the underground ossuaries in Paris, holding the remains of more than six million people
Visit the unique Skull Chapel in Czermna, Poland, a chapel decorated with human skulls and bones
Naples' notorious sail-shaped housing estate — brutalist symbol of Gomorrah, now mostly demolished
A White Sea island fortress-monastery that became the first camp of the Gulag.
Ruined British slave fort on an island in the Sierra Leone River, from which thousands were shipped to the Carolinas.
Poignant slave-trade island, UNESCO-listed.
Slave-trade island, UNESCO-listed.
Sobering slave-trade fortress, UNESCO-listed.
Memorial arch on the beach where enslaved people were forced onto ships.
The oldest European building in sub-Saharan Africa, a haunting slave-trade fort.
Choeung Ek memorial outside Phnom Penh, a stupa of skulls marking the Khmer Rouge mass graves.
Sober memorial village commemorating the Belarusian villages destroyed in WWII.
Meet the thousand-year-old dead of Chauchilla, sitting in their open desert graves with hair and textiles intact
Walk the ghost settlement of Santa Bárbara, the colonial mercury mine they called 'the mine of death'
A chapel decorated with the bones of 40,000 people — chandelier included — beside the Gothic St Barbara’s Cathedral.
Israel’s Holocaust memorial and museum on the Mount of Remembrance in Jerusalem.
The Death Railway bridge built by Allied prisoners of war in 1943, still crossed by trains today.
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