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Valentines� Day is a multi-billion-dollar business for American florists and restauranteurs.

Valentines' Day is a multi-billion-dollar business for American florists and restauranteurs.

A mosaic in Pompeii and distant asteroids in the solar system.

A calculator shows the start of the seemingly endless number that constitutes Pi, the mathematical concept and symbol.

A two paneled image. On the left, a microscope image of the rete ovarii. On the right, an illustration of exoplanet k2-18b

an illustration of a man shaping a bonsai tree

Athletic couple weight training in lunge position at health club.

An illustration of sperm swimming towards an egg

Catherine the Great art, All About History 127

A digital image of a man in his 40s against a black background. This man is a digital reconstruction of the ancient Egyptian pharaoh Ramesses II, which used reverse aging to see what he would have looked like in his prime,

Xerxes I art, All About History 125

Queen Victoria and Prince Albert, All About History 124 artwork

All About History 123 art, Eleanor of Aquitaine and Henry II

Tutankhamun art, All About History 122

Infographic: The layers and functions of the human skin.

science budgets for federal government

infographic of nuclear power plant

Fukushima fuel rod infographic

infographic of human body sweat

Today�s GoFIgure looks at phobias, defined as irrational fears of things which are not likely to be dangerous.

an abstract illustration depicting the collision of subatomic particles