1. A group of tourists sunbathing atop the Great Pyramids in Giza.
2. Walt Disney overcome with pure joy on the opening day of Disneyland in 1955.
3. The luxurious main dining hall of the RMS Titanic.
4. The steel beams of the Eiffel Tower in Paris, reaching upward in 1888.
5. A human silhouette scorched into the earth after the atomic explosion in Hiroshima.
6. The Hollywoodland sign watching over Los Angeles in 1925.
7. Australia's Sydney Opera House in the early stages of its construction in 1973.
8. The World Trade Center begining to rise over New York City in 1971.
9. A group of Las Vegas tourists enjoying front-row seats to an atomic test in 1953.
10. A couple holding their newborn babies for their grandparents on the other side of the Berlin Wall to see in 1961.
11. A Native American man standing on the roof of Alcatraz during the 1970 Alcatraz Occupation.
12. The Statue of Liberty's left arm being constructed in Paris during the winter of 1882.
13. The scorched aftermath of a B-25 bomber crash into the side of the Empire State Building in 1945.
14. A Japanese man sailing a junk with Mount Fuji looming in the background, circa 1890s.
15. London in smoldering ruins following the Nazi blitz of Dec. 29, 1940.
16. The empty halls of London's National Gallery after everything was hidden from the Nazis during World War II.
17. Victory fireworks lighting up Moscow's Red Square after the end of World War II was declared, in 1945.
18. The London Tower Bridge with its middle missing in the late 19th century.
19. A partially completed Mt. Rushmore in the 1930s, after 500,000 tons of granite had already been removed.
20. Archeologist Howard Carter inspecting King Tut's golden sarcophagus after opening Tut's tomb in 1923.
21. A Hooverville encampment in New York City's Central Park, where many lived during the Great Depression.
22. When Niagara Falls had its water "turned off" in 1969 for an erosion study.
23. This group of fishermen enjoying a view of the Golden Gate Bridge under construction in 1930s.
24. The Madison Square Garden arena under construction in New York City during 1966.
25. And the United States Capitol without its top in 1859.
See more fascinating historic pictures at Getty Images.