3. United States – Third largest population in the world but far far behind China and India is the United States. With 316,364,000 in population, and 4.45% of the total population on the planet. The United States is also 4th largest in the world by area Loading…
3) Mendenhall Ice Caves – Alaska The ice caves are located under the 12 mile long mendenhall glacier located near Juneau. They are only accessible to those willing to kayak to and then ice climb over the glacier.Unfortunately, this wonder is retreating due to global warming and one cave has already collapsed. Loading…
