Explore the underground ossuaries in Paris, holding the remains of more than six million people
The perpetrators of the Indonesian massacres restage their killings as film scenes.
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.
Basalt peak above the lagoon where runaway slaves hid, now a UNESCO site with a steep, rewarding summit trail.
Poignant slave-trade island, UNESCO-listed.
Slave-trade island, UNESCO-listed.
Moving memorial to the 1994 genocide.
Sobering slave-trade fortress, UNESCO-listed.
Memorial arch on the beach where enslaved people were forced onto ships.
The hand-dug tunnel under Sarajevo airport that kept the besieged city supplied for three years in the 1990s.
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.
The canal house where Anne Frank hid for two years and wrote her diary, with the original bookcase door.
Meet the thousand-year-old dead of Chauchilla, sitting in their open desert graves with hair and textiles intact
Sober memorial village commemorating the Belarusian villages destroyed in WWII.
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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