1.
This photo of a penguin's coat of feathers:
2.
This newspaper announcing the polio vaccine in 1955:
3.
This photo of Niagara Falls frozen solid:
4.
This wild mutation of a crocodile's tail:
5.
This photo of Albert Einstein's desk, taken the day he died:
6.
This photo of heated floors before the surface is installed:
7.
This piece of material painted with a paint that's so black, it literally looks like a void:
8.
This passage that shows the evolution of the English language:
9.
This X-ray of a 16-month-old child who swallowed a keychain:
10.
This photo showing the difference in shoes worn with a flesh leg and a prosthetic leg after a full year:
11.
This McDonald's stash that someone in Russia stockpiled in anticipation of all McDonald's stores in the country permanently closing:
12.
This artist's drawing progress between ages 15 and 25:
13.
This photo of the same whale taken 35 years apart:
15.
This photo of an eye after a cornea transplant:
16.
This cost of living guide from 1959 that has me crying in 2022:
17.
And finally, this Burger King that dressed up as a McDonald's for Halloween:
