Lambert-Fisher Glacier in Antarctica.
Length: 400 kilometers
Width: 100 kilometers
Where was the Chacaltaya glacier, one of the highest in South America, which was 0.22 km2 (0.085 sq mi) in 1940 and effectively gone in 2009?
Which is the world's largest urban area in both size and population ?
Where is "The Self-Transcendence 3100 mile race", the world's longest certified footrace according to its organisers, which is held annually June-August?