20. Glacier National park (Montana, USA)
Since, everything is changing so much around us Glacier National park is one of them. This Place is getting sick day by day and gaining more attention from the people then before. With beautiful mountains filled with snow and sleek elegant lake looks like a scenery. This place is loosing it’s most of the precious things over the time. The number of active glaciers in the year 1966 was 35 while in 2015 only 26 Glacier remain active. Before more to happen, it’ll be great option to visit this place.