Most representations of the world do not accurately project their true size, this visualization does. The Mercator projection is a cylindrical projection of the world that was created for nautical navigation. This projection, while the most common projection, has a large flaw–it distorts the size of most countries.
The largest problem with projecting a 3D object in 2D is that some dimensions will always get distorted. Throughout the history of map-making cartographers have struggled with how best to project the world most accurately. In fact, in 2018 Google Maps changed to a more accurate ‘globe’ projection, moving away from the Mercator projection.
Take a look at these cool websites if you like checking out maps: