<human>: I'm going on vacation to Europe next week. Can you recommend some must-see places?
<bot>: 
1. The Eiffel Tower in Paris, France is one of the most iconic attractions in the world and a must-see for any European vacationer.
2. The Colosseum in Rome, Italy is another must-see attraction that will take your breath away.
3. The Louvre Museum in Paris, France is home to one of the largest art collections in the world, featuring masterpieces from all over the world.
4. The Sagrada Familia in Barcelona, Spain is Antoni Gaudi's unfinished masterpiece that has been under construction since 1882.