This seems to some sort of European place, a lot of resemblance with Italian architecture. My guess would NOT be:
Rome as it’s has most buildings made out of stone
Pisa as again stone and not such architecture
Venice as mostly not high building
My guess is Florence.
Since we are talking about Europe, a great trip of travelling around Europe would be to make use of their extensive and cost effective means of transport i.e. railways. To make your journey cheaper you can buy a eurail pass. It can be further bought at discount from various websites such as klook. Cheers
My guess is the Pantheon, Paris, France. Stay close to a metro station (even if it is outside of the central zones) and buy a Navigo pass for ease of using in all types of public transport…
It does look like the dome of Pantheon, Paris, France.
A tip for Paris: If you are planning to visit multiple museums in Paris, the Paris Museum Pass can really help you save on costs. A smart hack is to start using the pass in the afternoon, say around 2 PM, since it’s valid for consecutive calendar days, not 24-hour periods. That way, you effectively get almost three full days of access on a 2-day pass.
It covers major attractions like the Louvre, Orsay, Pantheon, and Versailles, among many others.
However, if you are only visiting one or two museums, it’s usually cheaper to just buy individual tickets instead.