Some of my articles are more beautiful than others:

 

If you are a layman, Theory of Everything section, Newtons Inverse Square Law of Gravity section and Entropy section would be beautiful. If you also know logarithm, (which you can otherwise learn in Logarithm) Discrete area spectrum and the black hole entropy I & II, would be also beautiful. If you are eager to understand what special relativity is as soon as possible, read A short introduction to the history of physics, and string theory as a Theory of Everything, What is a vector?, all the articles in the section Electricity and Magnetism, the first part, then the section Special Relativity. If you are eager to understand what quantum mechanics is as soon as possible, read What is a vector?, Matrices and Linear Algebra,  Eigenvalues and eigenvectors, the first three articles of A Crash Course in Calculus, the first part, then A short introduction to quantum mechanics I: observables and eigenvalues and A short introduction to quantum mechanics III: the equivalence between Heisenbergs matrix method and Schrödingers differential equation.

 

If you are a high school student familiar with the trigonometric functions Complex numbers and the trigonometric functions would be very beautiful, after reading Complex numbers as prerequisites.

 

If you are a student learning high school physics Electromagnetic forces and time dilation in special relativity and Origin of the magnetic force from the perspective of special relativity would be beautiful.

 

If you are a science and engineering student, I recommend A short introduction to quantum mechanics I: observables and eigenvalues and A short introduction to quantum mechanics III: the equivalence between Heisenbergs matrix method and Schrödingers differential equation If you also want to know what quantum field theory is like, you may want to read What is a Feynman diagram? If you know special relativity, 4-vector, Lorentz transformation and de Broglies derivation of matter waves would be very beautiful, after reading Rotation and the Lorentz transformation, orthogonal and unitary matrices as prerequisites.

 

If you are a science and engineering students who know Maxwells equations expressed using multivariable calculus, I recommend Differential forms, vector calculus, and generalized Stokes theorem and Maxwells equations in differential forms.

 

If you are a physics major, I recommend What is a gauge theory? and A relatively short introduction to general relativity.