The Well of Barhout: Yemen's "Well of Hell" that locals have avoided for centuries
Al-Mahra, Yemen, 2021 Partly explained
The Echoes of the Past team
The Zone of Silence: the Mexican desert where, legend says, radios die, compasses fail and meteorites fall in droves
Bolsón de Mapimí, Durango, Mexico, 1970 Partly explained
Anastasia: the DNA that solved the mystery and the questions it left behind
Ipatiev House, Yekaterinburg, Russia, 1918 Partly explained
Fermi's great silence: if the universe has billions of stars, where is everybody?
Los Alamos, New Mexico, United States, 1950 Under debate
Sacsayhuamán: the stones that survived the conquest because they were too big to steal
Sacsayhuamán, Cusco, Peru, 1438 Partly explained
The Isdal Woman: found dead in a Norwegian valley with no identity, no past and suitcases full of false leads
Isdalen Valley, Bergen, Norway, 1970 Open
Mitar Tarabich: the illiterate peasant who supposedly foresaw humanity's future
Kremna, Zlatibor, Serbia, 1899 Under debate