Tallest mountain in the Solar System

According to Official Guinness Records,

Olympus Mons is the highest mountain in the solar system. Its peak is 25 km (15 miles) above its base – nearly three times the height of Mt. Everest. Olympus Mons is designated a shield volcano because of its shape. Despite its great height, it has a very gentle slope. Olympus Mons is over 20 times wider than it is high.It is the same kind of volcano as the active volcanoes currently "creating" the Hawaiian Islands. The line around Olympus Mons is a "basal cliff" that is as high as 6 km (3.72 miles) in some places.

For a complete list of Unknown date records, please visit Unknown date Guinness Records in United Kingdom.

Related Images

Other United Kingdom records that might interest you:

• Most geologically active inner planet
• Most dangerous cheese
• Most wins of the World Snail Racing Championships
• Longest serving soap star
• Largest robotic arm in space