Mount Elgon is an extinct shield volcano on the border of Uganda and Kenya, north of Kisumu and west of Kitale. The mountain's highest point, named "Wagagai", is located entirely within Uganda. Mt Elgon was once Africa’s highest mountain, far exceeding Kilimanjaro’s current 5,895m. Millennia of erosion have reduced its height to 4,321m, relegating it to the 4th highest peak in East Africa and 8th on the continent.

Nevado Tres Cruces is a massif of volcanic origin in the Andes Mountains on the border of Argentina and Chile. It has two main summits, Tres Cruces Sur at 6,748 metres (22,139 ft) and Tres Cruces Centro at 6,629 m (21,749 ft) and a third minor summit, Tres Cruces Norte 6,030 m (19,780 ft).

The universe is all of space and time and their contents. It comprises all of existence, any fundamental interaction, physical process and physical constant, and therefore all forms of matter and energy, and the structures they form, from sub-atomic particles to entire galactic filaments.

The Rocky Mountain region is one of the most topographically distinct and impressive parts of North America. The Rocky Mountains rise abruptly above the bordering regions, particularly on the east and northeast where they are flanked by plains, less so on the west and southwest where they are bounded by high plateaus.

The Andes Mountains are a vast and beautiful mountain range that runs along the entire western coast of South America. The range stretches over 4,000 miles, from Colombia in the north, through Ecuador, Peru, Bolivia, Chile, and Argentina, and ending at Tierra del Fuego, the southernmost tip of the continent.

The Hindu Kush is a significant mountain range in Central and South Asia, extending approximately 800 kilometers (500 miles) through Afghanistan and into northern Pakistan. Tirich Mir in Pakistan, which stands at 7,708 meters (25,289 feet), is the highest peak of the range. The range features rugged terrain with deep valleys and high, snow-covered peaks, making it a formidable barrier.

The Pyrenees is a mountain range in southwest Europe that forms a natural border between Spain and France, extending about 491 kilometers (305 miles) from the Bay of Biscay in the west to the Mediterranean Sea in the east.

K2, at 8,611 metres (28,251 ft) above sea level, is the second-highest mountain on Earth, after Mount Everest at 8,849 metres (29,032 ft). It lies in the Karakoram range, partially in the Gilgit-Baltistan region of Pakistan-administered Kashmir and partially in the China-administered Trans-Karakoram Tract in the Taxkorgan Tajik Autonomous County of Xinjiang.

Mount Korab is the highest peak in both North Macedonia and Albania, standing at an elevation of 2,764 meters (9,068 feet) above sea level. It's part of the Korab mountain range and is situated on the border between the two countries. Korab Range, part of the larger Dinaric Alps.

Mt. Lhotse is connected to Everest via the South Col and is the fourth highest mountain in the world. The main summit is 8,516 m while Lhotse Middle (East) is 8,414 metres and Lhotse Shar is 8,383 metres. Very often, climbers making an attempt on Everest, go up the Lhotse to acclimatize.