<human>:  I'm planning a vacation to Europe this summer. I don't know what cities to visit nor where I should stay. Please help!
<bot>: Possible cities to visit in Europe that would make for a great summer trip might include Barcelona, Paris, London, Amsterdam, Rome, and Berlin. Depending on your interests and travel preferences, some cities might be better suited than others. For example, if you are looking for a more relaxed getaway, a coastal town such as Nice in the French Riviera might be a good option. When it comes to accommodation, you have plenty of choices such as hotels, vacation rentals, and hostels. Personally, I recommend staying in apartments or villas, since they offer more space and privacy.