According to wikipedia, they are :-
RankCountryTown / CityRegion / StateHeight (m)Height (ft)1 PeruLa RinconadaPuno5100167281 ChinaWenzhuanQinghai - Tibet5019164672 BoliviaColquechacaPotosi4692153933 IndiaKomic, Lahaul-Spiti districtHimachal Pradesh4587150494 ChileParinacotaArica-Parinacota4400144355 NepalDolpa
4360143016 BoliviaEl AltoLa Paz4150136157 ArgentinaOlacapatoSalta4009131538 BhutanLayaGasa District3820125339 MexicoRaícesMexico35311191910 VenezuelaApartaderosMérida350511502
Mount Everest is the highest mountain above sea level in the world. Its summit is 29,026 feet above sea level.
None of those cities are anywhere near "highest in the world". - Delhi is about 700 ft, Riyadh is about 1,970 feet , Nairobi is closest at 5,400 feet. -However there are literally hundreds of cities higher than that. La Rinconada, Peru is highest at 16,728 feet
La Paz, Bolivia
Mount Everest, at 29,029 feet above sea level, is the world's highest elevation.
La Rinconanda in Peru, at 5,100 metres, is the highest town in the world.
The two highest mountains above sea level are Mount Everest and K2
Mount Everest is the highest mountain above sea level.
The highest mountain in the world, Mount Everest, is 29,029 feet above sea level
Lake Titicaca is the most highest navigable lakeon Earth at 3,821 meters / 12,507 feet above sea level where boats can travel.
Mount Everest is 8,848 meters (29,029 feet) above sea level, making it the highest elevation point in the world
Washington's highest point is Mt. Rainier, at 13,211-feet tall. The highest point of Mt. Rainier stands 14,411-feet above sea level. Mt. Rainier is the 21st most prominent peak in the world.
Qamdo Bangda Airport (BPX) in Tibet is the highest airport in the world at an altitude of 4,334 metres (14,219 feet) above sea level.