Geyser
Yellowstone is the largest geyser locale, containing thousands of hot springs, and approximately 300 to 500 geysers. It is home to half of the world's total number of geysers in its nine geyser basins. It is located mostly in Wyoming, USA, with small portions in Montana and Idaho. Yellowstone includes the world's tallest active geyser (Steamboat Geyser in Norris Geyser Basin), as well as the renowned Old Faithful Geyser, Beehive Geyser, Giantess Geyser, Lion Geyser, Plume Geyser, Aurum Geyser, Castle Geyser, Sawmill Geyser, Grand Geyser, Oblong Geyser, Giant Geyser, Daisy Geyser, Grotto Geyser, the Fan & Mortar Geysers, & the Riverside Geyser, all in the Upper Geyser Basin which alone contains nearly 180 geysers.
Knud Rasmussen Glacier
The Knud Rasmussen Glacier is located in the far northwest of Greenland, to the north of the Thule Air Base. It is one of four large glaciers which feeds the Wolstenholme Fjord (sometimes referred to as "the world's largest ice machine"). The other glaciers are the Salisbury Glacier, the Chamberlin Glacier, and the Harald Moltke Glacier. The Knud Rasmussen Glacier is over in length and is approximately in width.