Lettuce is a member of the sunflower family.

The steam locomotive expanded rail travel.

The Great Wall of China was not built as one continuous structure but over many centuries by different dynasties.

The Sydney Opera House features a distinctive shell-like design.

The Great Fire of London in 1666 destroyed 13,200 houses but killed fewer than 10 people.

The microwave oven was invented accidentally when Percy Spencer noticed a radar magnetron melted a chocolate bar in his pocket.

The ancient Romans used fermented fish sauce called garum as their primary condiment, similar to how salt is used today.

Protein folding — how a chain of amino acids twists into a 3D structure — is so complex it was unsolved until AI cracked it in 2020.

The pungent smell of durian comes from sulfur compounds similar to those found in onions and garlic.