The following is a list of the tallest mountains of the world, the peak elevations above sea level on the planet. These ten tallest mountain in the world are all found in the Himalaya. In fact, the fifty tallest mountains in the world are all found in Asia. 1. Mount Everest-China/Nepal - 29,035 feet (8850 meters). 2. K2 - China/Pakistan - 28,251 feet (8611 meters).
http://geography.about.com/od/lists/a/tallestmountain.htm
The world's tallest mountain technically is not Mount Everest. Mount Everest is the tallest mountain above sea level, but if we're talking sheer height here, base to summit, then the tallest mountain is Mauna Kea on the island of Hawaii. Here's how it breaks down: Everest stands 29,035 feet above sea level. Mauna Kea only stands 13,796 feet above seal level, but the mountain extends about 19,700 feet below the Pacific Ocean. Over half of it is submerged. That puts the total height of Mauna Kea at about 33,500 feet — nearly a mile taller than Everest.
http://www.businessinsider.com/earths-tallest-mountain-is-hawaii-2015-6
Mount Everest, also known in Nepal as Sagarmāthā and in Tibet as Chomolungma, is Earth 's highest mountain. It is located in the Mahalangur mountain range in Nepal. Its peak is 8,848 metres (29,029 ft) above sea level. It is not the furthest summit from the centre of the Earth.
https://en.wikipedia.org/wiki/Mount_Everest
That honour goes to Mount Chimborazo, in the Andes. The international border between China and Nepal runs across Everest's precise summit point. Its massif includes neighbouring peaks Lhotse, 8,516 m (27,940 ft); Nuptse, 7,855 m (25,771 ft) and Changtse, 7,580 m (24,870 ft).
https://en.wikipedia.org/wiki/Mount_Everest
Mauna Kea (in Hawaii) is the world's tallest mountain peak. When measured from the ocean floor to its summit, it's 33,476 feet tall (10,204 meters), but only its top 13,803 feet (4,207 meters) extend above sea level. Mauna Kea is also the world's tallest volcano.
http://www.answers.com/Q/What_is_the_tallest_mountain_in_the_world
Tallest mountain from sea level (highest): Mount Everest (also known as Qomolangma, or Chomolungma) in Asia's Himalayas is the world's highest mountain peak. When measured from sea level to its summit, it's 29,029 feet (8,848 meters) tall.
http://www.answers.com/Q/What_is_the_tallest_mountain_in_the_world
Mauna Kea, an inactive volcano in Hawaii, is the world's tallest mountain as measured from its base, deep in the Pacific Ocean, to its summit.
http://www.livescience.com/32594-which-mountain-is-the-tallest-in-the-world.html
Mount Everest attracts many highly experienced mountaineers as well as capable climbers willing to hire professional guides. There are two main climbing routes, one approaching the summit from the southeast in Nepal (known as the standard route) and the other from the north in Tibet.
https://en.wikipedia.org/wiki/Mount_Everest
There are two mountains that could claim the title of the world's tallest. The summit of Mount Everest is higher above sea level than the summit of any other mountain, but Mauna Kea is the tallest when measured from base to summit. Mount Everest. When measuring mountain summits by their height above sea level, Mount Everest is the highest mountain in the world. Standing at 29,035 feet (8,850 meters) it reigns over the eight-thousanders club, a list that consists of the 14 mountains on Earth that are at least 8,000 meters tall.
http://www.livescience.com/32594-which-mountain-is-the-tallest-in-the-world.html
Mauna Kea is the tallest mountain in the world when measured from  base to summit   The base of Mauna Kea is 19,678 feet below sea level and its  summit is 13,796 feet ab … ove sea level.  That gives Mauna Kea a total height of 33,474 feet from its  base to its summit.
http://www.answers.com/Q/What_is_the_tallest_mountain_in_the_world
what is highest mountain in the world?
Mount Everest is highest mountain in the world.  Mount Everest is the highest mountain in the world.