1. When this was the tallest thing in Paris.
Construction of Eiffel Tower, 1880s
2. When Liberty was in pieces.
Feet of the Statue of Liberty arrive on Liberty Island 1885.
3. When the Flatiron was still for rent.
Flatiron Building, New York. The Manhattan landmark under construction. 1902.
4. When the automobile economy looked so different.
Charging an electric car in 1905
5. When NYC looked like this.
The Streets of New York City in 1908
6. When roller skates were the hot new thing.
Roller Skates, 1910
7. When rush hour looked like this.
Chicago Rush Hour, 1909
8. When it actually happened.
"When pigs fly…" - The first flight of a pig took place at Leysdown, Kent, England. 1909.
9. When Machu Picchu was first photographed.
The first photo upon discovery of Machu Picchu, 1912
10. When the Titanic set sail.
The last known photo of the Titanic, as the ship leaving Queenstown, Ireland on April 12th, 1912.
11. And then this story broke.
The day after the Titanic disaster. London, April 16, 1912.
12. When this guy teetered on the edge.
Grand Canyon, 1914.
13. When these guys unveiled their first motorbike.
William Harley and Arthur Davidson, 1914
14. When Gaudi's masterpiece was surrounded by goats.
Gaudi's Sagrada Família in Barcelona, 1915
15. When the first selfie was snapped.
This is how people took selfies in 1920
16. When swimsuit length was carefully controlled.
1922 Beach Police -- No swimsuit was allowed to be higher than 6 inches above the knee.
17. When King Tut still lay sleeping.
The unbroken seal on Tutankhamun’s tomb, 1922
18. When London buses looked like this.
London Bus, 1928
19. When this new vantage point opened.
View from the top on the opening day of the Empire State Building, 1931
20. When people queued for Capone's coffee.
Al Capone’s free soup kitchen, Chicago, 1931
21. When woman were thirsty.
Women demonstrating against Prohibition, 1932
22. When Lake Mead wasn't a lake yet.
The rarely seen back of the Hoover Dam before it filled with water 1936.
23. When the Golden Gate looked like this.
Golden Gate bridge construction, 1937
24. When the Hindenburg exploded.
The Hindenburg - May 6, 1937
25. When playtime was reduced to this.
Children wearing gas masks while playing, 1941
26. When people sold their babies.
Unwanted babies for sale in Italy, 1940s
27. When oranges cost 1 cent.
Oranges for 1 cent, 1942
28. When the Hollywood sign still looked like this.
The famous Hollywood sign, which originally said 'Hollywoodland'. The last four letters were removed in 1949.
29. When The Grinch was born.
Dr Seuss drawing The Grinch, 1957.
30. When MLK was arrested.
Martin Luther King Jr. arrested outside a courtroom, 1958
31. When no one had been rocked.
Freddie Mercury 1958
32. When airline meals were extravaganzas.
Back when airlines served a full meal in flight, 1958
33. When remote controls were cutting-edge.
Motorola remote control TV, 1962
34. When Nov. 22, 1963, was still a happy day.
Moments before being assassinated in Dallas, Texas in November 1963, President John F. Kennedy Jr. waves to onlookers
35. When Brandon started kung fu fighting.
Bruce Lee playing with his son Brandon, 1966.
36. When we saw how alone we are.
'Earthrise' over the moon, taken by members of Apollo 8 in 1968
37. When Niagara ran dry.
Niagara falls without water. 1969
38. When a few people got together to party.
Opening ceremony of Woodstock, 1969
39. When the Beatles crossed the road.
The Beatles crossing Abbey Road, 1969
40. When the Jacksons were a happy family.
The Jacksons, 1970.
41. When Big Macs cost 65 cents.
McDonalds menu in the early 1970's
42. When John turned around and said, "Oh, hello Paul" for the last time.
Last known photo of Lennon and McCartney, 1974
43. When Steven met Bruce.
Steven Spielberg lying in the mouth of "Bruce the shark" on the set of Jaws, 1975
44. When the president showed how it's done.
Gerald R. Ford and Pelé, 1975
45. When this movie opened.
Star Wars Opening day, 1977
46. When the Brat Pack was young.
Tom Cruise, Emilio Estevez, C. Thomas Howell, Patrick Swayze, Ralph Macchio, Rob Lowe and Matt Dillon, 1983
47. When they kissed in Dirty Dancing.
Patrick Swayze and Jennifer Grey in Dirty Dancing, 1987
48. When Jay Z went on vacation.
Jay-Z, before fame, visiting London in 1988
49. And when Justin met Ryan.
A young Justin Timberlake and Ryan Gosling in 1994. Both members of The Mickey Mouse Club.