The Sahara Desert is roughly the same size as the contiguous United States.

The Silk Road connected East Asia with Europe through trade networks.

The deepest point in the ocean is deeper than Mount Everest is tall.

Mount Everest lies on the border between Nepal and China.

There are mountains on Earth taller than Everest when measured from base to peak underwater.

The shortest commercial flight in the world operates between two Scottish islands — Westray to Papa Westray — lasting about 90 seconds.

The ocean contains structures larger than mountain ranges.

The Sahara Desert is roughly the same size as the continental United States.

The largest living structure on Earth is the Great Barrier Reef.