Alternate Prague
Some alternate developments of Prague:
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In the late 1850s, Czech architect Josef Kranner received an objective to finish the
St. Vitus Cathedral at Prague Castle. He created this proposal together with fellow architect Petr Parléř. The finished cathedral spire would have been 160 meters high. Kranner died in 1871 and the plans fell through...
...only to be followed up in the 1880s and 1890s with studies by Josef Mocker. Before it got anywhere to actually receiving funding and starting construction, Mocker died in 1898. The last to work on this proposal was a young architect named Kamil Hilbert, but in 1903, he resigned from the whole project, admitting that it would be just too much of an undertaking, for several reasons.
And so, the cathedral remains unchanged to this day, as seen in the above contemporary photo.
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These are not really classical (as they are post-WWII architecture), but I couldn't find any other place to post them in. Believe it or not, these are two of some of the original concepts for what became the OTL
Žižkov Television Tower:
Frankly, though I am no fan of the OTL structure, it is at least a bit more creative than those two older concepts for it. In the early planning stages, it wasn't even set in stone where the new television tower would stand. Originally, it was supposed to be more in the foreground of the Prague skyline (matter of taste, but said different placement could have potentially ruined the panorama).
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As early as the 1920s, there were plans to redevelop parts of
Petřín and build a new major road or highway, as well as a tramway route over there. Public pressure eventually nixed the idea, though there were some other major "let's demolish part of Petřín and build something else there" proposals reoccuring in later decades.
Some proposals were to affect
Malá Strana as well. Antonín Balšánek had a rather grandiose concept for a new parliamentary building on the banks of the Vltava, but this was also eventually shot down as an idea.
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Last but not least, a comparison:
OTL Prague skyline
ATL Prague skyline (with all of the aforementioned unrealised proposals inserted in)
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Source article link
Creator of ATL panorama link