Related by context. Frequent words. (Click for all words.) 48 Olkiluoto 46 metallurgic 46 Kola Peninsula 43 archeological excavations 43 neolithic 42 excavations 42 excavation 41 Ignalina 41 Depleted Uranium 41 Chernobyl reactor 41 paleontological 41 Rumyantsev 41 INEEL 41 EPICA 40 Linköping 40 sarcophagus 40 Nuclear Waste 40 tailings impoundment 40 Studsvik 39 excavated 39 Baltic Sea 39 Forsmark 39 Bathory 39 Iron Age 39 archeological dig 39 lunar soil 39 Bronze Age 39 Nuclear Reactor 39 Quantum Theory 38 Necropolis 38 Pripyat 38 underground lair 38 Aperture Science 38 permafrost 38 Chornobyl 38 excavate 38 Apocalyptica 38 Eirik 38 vitrification plant 38 archeological 38 radioactive wastes 38 Hasankeyf 38 Cogema 38 excavating 37 archaeological excavation 37 radioactive waste 37 underground caverns 37 Archeologist 37 tailing ponds 37 adits 37 Plutonium 37 Semipalatinsk 37 subterranean 37 Mayak 37 unexploded shells 37 Sassanid 37 Unearthed 37 Tut tomb 37 archeologists 37 excavates 36 Svalbard Global 36 archaeological 36 cavern 36 entombing 36 underground 36 Auschwitz 36 Heisenberg 36 geological formations 36 Sigurd 36 americium 36 Tunnelling 36 mini nukes 36 carbon dioxide sequestration 36 viking 36 Belene nuclear 36 Gorleben 36 underground cavern 36 tunnels dug 36 particle accelerator 36 Yucca Mountain 35 Nikopol 35 Belene 35 dry casks 35 catacomb 35 NRU reactor 35 Chernobyl 35 Rostekhnadzor 35 flint tools 35 Tunguska 35 tailings 35 underground tunnels 35 archaeological excavations 35 wormhole 35 Nuclear Regulatory 35 Temelin 35 megalithic 35 Norwegian Polar 35 catacombs 35 fossilized bones 35 transuranic waste 35 Waste Isolation Pilot