German phrase
Welche ~ haben Sie besucht?
Meaning
Which ___ have you visited?
When to use it
Asks which places you visited. It is polite and suits travel or business contexts.
Example dialogue
Welche Museen haben Sie besucht?
Which museums have you visited?
Ich habe das Pergamonmuseum und die Alte Nationalgalerie besucht.
I have visited the Pergamon Museum and the Old National Gallery.