Sometimes, it takes a great struggle to build towering peaks. And what more thunderous event is there than the clashing of continental plates? Geological pileups have birthed some of the largest and tallest mountains on the planet, including Mount Everest and its Himalayan neighbors. But has there ever been a peak taller than Mount Everest, which stands 29,032 feet (8,849 meters) above sea level? The answer is still a mystery, but there are some geological clues about where the tallest peaks would have been in the ancient past, experts told Live Science. Earth's lost mountainsGeologists don't have the level of detail required to pinpoint an exact highest peak hundreds of millions of years ag...