Janina Ramirez explores the surprise discovery in a Suffolk garden of the Sutton Hoo Hoard – an incredible Anglo-Saxon ship-burial dating from the early 7th century AD and the final resting place of a supremely wealthy warrior-king. The ship’s ruined burial chamber was packed with treasures: Byzantine silverware, sumptuous gold jewellery, a lavish feasting set and, most famously, an ornate iron helmet. Now known as Britain’s Tutankhamun, the hoard transformed our understanding of the Dark Ages, revealing that 7th-century Britain was not the primitive place we had imagined, but a world of exquisite craftsmanship, extensive international connections, great halls, glittering treasures and formidable warriors. The find captured the imagination of a nation on the brink of war, not just as incredible treasure, but as a symbol of pride and identity, and a representation of the Anglo-Saxon culture Britain was about to fight for.

The Lion Man takes Nina deep into the dark heart of Nazi Germany, where in a remote cave in late August 1939, archaeologist Robert Wetzel came across the 40,000-year-old artwork now known as the Lion Man. Just a week later, WWII broke out, the excavation came to halt and, in one of the great mysteries of archaeology, Wetzel never mentioned his incredible find again. As Janina discovers, the Lion Man represents a revolution in the human story. Half-man and half-animal, it is the first artwork created from the human imagination, revealing the very origins of human art, religion and culture. But, in fact, Janina learns that it is almost a miracle the Lion Man came to light at all, because it was not pulled out of the cave as a single artwork but as hundreds of tiny ivory shards, found in numerous chance discoveries across eight decades.

Janina Ramirez travels to Mexico, where, just before the outbreak of WWII, American husband-and-wife explorer team Matthew and Marion Stirling were lured into the jungle by the legend of a colossal stone head. They found the head – and a lot more than they bargained for – because it turned out to be the first clue in a trail that led to the discovery of a lost civilisation, now known as the Olmecs. As Janina follows their footsteps through the jungle, she discovers that the go-getting Stirlings embodied the adventurous determination of pre-war archaeological explorers. Breaking new ground, the Stirlings realised that it was the Olmecs – not the much-later Mayans or the Aztecs – who built the very first pyramids, palaces and planned cities for which Central America is now so famous.