Massive bolts of lightning shoot through the skies above Lake Maracaibo, Venezuela on a nearly daily basis. It's called the “Lightning Capital of the World,” but experts have yet to identify what causes this atmospheric phenomena. (Credit: Getty Images)

Lightning storms gather over Lake Maracaibo, Venezuela. There are no reliable theories that explain why massive amounts of lightning gather at this exact spot over 300 days a year. (Getty Images)

Beth Peterson of Fort Benning, Georgia was struck by lightning twice. It’s highly unusual to be struck by lightning and it’s even more surprising to survive a lightning attack. Incredibly, Beth survived two lightning strikes. Experts can’t rule out that Beth’s physiology attracted the lightning, but could there be other, unexplained forces at work? (Credit: Beth Peterson)

In 1962 the fire department of Centralia, PA set the town dump on fire to satisfy state regulations to clean it up. They had set it on fire before, let it burn for a while and then washed it away with water. But this time, the fire continued to smolder and grow. It has never gone out. (Credit: David Dekok)

Confounding residents and experts alike, an unstoppable underground fire has burned beneath Centralia, PA since 1981. Once the fire traveled into a labyrinth of abandoned coal mines beneath the town, nothing they tried could put it out. (Credit: David Dekok)

Eventually, the Centralia, PA fire broke out above ground. Alarmed residents witnessed 900-degree smoke and toxic gases coming up from the street and out of the vents. No one had any reasonable idea what to do. (Credit: David Dekok)

The raging fire beneath Centralia, PA melted pavement, opened sinkholes and devastated the town. Officials offered no solution to the inferno and the government eventually had to pay people to move, causing a mass exodus. Today the population of Centralia is five. (Credit: David Dekork)

Unnaturally shaped trees in Poland bewilder tourists and experts alike. It's known as the Crooked Forest, and botanists believe human manipulation may have caused the curve. Beyond that, there is nothing to explain this unusual growth pattern. (Credit: Getty Images)

A grove of 400 pine trees planted before World War Two in Poland bend sharply to the north and then inexplicably curve straight up again. Experts are baffled by these trees. No plausible theory explains what causes their uniformly curved trunks. (Credit: Getty Images)

Devils Tower, a 900-foot rock formation rising straight out of the Wyoming prairie, is a sacred mount to indigenous people of the area, but a geological anomaly and a mystery to scientists. It’s made from volcanic material in a location where there is no other volcanic activity. (Credit: Jason Lindsey)