Tallest mountain

by Yi Zhang

Smithsonian has this post for the tallest mountain in our solar system. Let alone the 15.5 miles high Olympus (yeah, what other names can you come up with, Mordor?)  on Mars, one thing I didn’t know is the mountain height is measure from base to peak, which makes Everest far less impressive than Mauna Loa at Hawaii.

Mauna Loa (as seen from nearby Mauna Kea) is tall enough to have snow, at least when the volcano isn't erupting (courtesy of flickr user superfluity)