Is this a Soviet-era beach? No. The beach scene is actually from Copacabana Beach in Brazil. As for the space age building towering above? That's the National Library of Belarus, opened in 2006, which is notably nowhere near a beach.
No, that's not a real photo of a double-decker bus race in 1933. It's a pre-Photoshop photo collage, despite what sources like Retronaut and @HistoryInPics might claim. The National Archive of the Netherlands clearly archived the photo in its Flickr account under fakes, photo montages and retouched images. On the right, an actual double decker bus being tested in 1933 to prove its stability.
Fake? Yes (you were not asking seriously, were you?) When: August 3, 2009 Hoax: The original photo showed Vladimir Putin riding a horse during his vacation outside the town of Kyzyl in Southern Siberia.
This picture is actually a composite of 12 photos. Official photographer for the Australian army, Frank Hurley stated that his heroic images of Australian soldiers in World War I were accurate, despite their contrived production. On the New South Wales State Library website, you can see how Hurley composited his most famous image.