I believe one of the reasons I like Lisbon so much is because of its geographical similarity to Istanbul (my home city). Tagus River like Bosphorus, 25 de Abril Bridge like Bosphorus Bridge, Tram 28 like the nostalgic tram in Beyoglu and last but not least 7 hills these beautiful cities are built on.
Did you know that Lisbon is the oldest city in Western Europe? The Roman and Moor history gave Lisbon not only its unique architecture but also its soul thanks to the magical mix of Western and Eastern lifestyle for centuries.
The trams in Lisbon are absolutely a highlight.
If you are in Lisbon, Portugal (and not vegetarian or vegan) you should definitely try this flaming Portuguese sausage.