Latest World Records News
The extremes of our planet and universe: the tallest mountains, deepest oceans, largest living things, hottest places, fastest animals, and most extreme records — explained with real science.
World Records
Biggest Cities in the World by Population: City, Metro, and Urban Area
A clear ranking of the world's biggest cities by municipal population, urban area, and metro region, with the measurement traps that make lists disagree.
World Records
Biggest Hydrogen Projects in the World
NEOM's $8.4B plant leads a wave of gigawatt-scale hydrogen projects reshaping fertilizer, steel, and shipping. Here's how the biggest ones actually work.
World Records
Biggest Mines in the World: The Giant Holes Powering Modern Life
The biggest mines on Earth expose how copper, iron, coal, gold, and diamonds reach the global economy, and why size can mean depth, output, or area.