Paleontology & Fossils: He possesses deep expertise in the Miocene era (around 20 million years ago). He frequently dives and excavates in fossil-rich areas like Florida to uncover massive Megalodon teeth, prehistoric shark teeth, and ancient marine fossils.Historical Excavation: Over more than a decade of active exploring, he has recovered a vast array of historical artifacts. These range from antique coins and arrowheads to rare religious artifacts, such as a late 1600s Russian Orthodox pendant discovered at an early Spanish home site in the United States.Dive Expeditions: Many of his finds are recovered from the ocean floor, rivers, and deep sinkholes. He utilizes professional scuba diving gear to conduct underwater archeology and locate submerged history. Magnet Fishing ExpeditionsMerkelov uses powerful rare-earth magnets attached to heavy-duty ropes to pull metallic objects from urban waterways, murky ponds, and historic canals.The Goal: His magnet fishing videos often center around searching for discarded evidence, historic artifacts, or cold-case murder weapons.Notable Finds: He frequently pulls up items like rusted machetes, old iron piping, historical milk jugs from the 1940s, and locked safes.High-Risk Environments: He often targets dangerous locations, such as alligator-infested waters or notoriously sketchy city canals, which routinely hazards his equipment and personal safety.Sewer and Underground Tunnel HuntsHis sewer exploration content transitions his channel into dark, atmospheric "urbex" (urban exploration) territory. He actively navigates highly toxic city sewage lines, historical drainage networks, and underground stormwater tunnels.True Crime & Mystery Angles: His sewer videos are highly narrative-driven. He often frames his hunts around urban legends, such as searching for clues about missing persons or exploring rumored underground cult hideouts.Bizarre Discoveries: During these claustrophobic underground treks, Merkelov has uncovered discarded items ranging from illegal military weapons, butcher knives, and old cameras to highly unusual objects like suspected witchcraft jars, creepy masks, and old lockboxes.