Brussels, the capital of Belgium, is a vibrant city known for its historic Grand Place, delicious chocolates and waffles, and rich cultural scene. It's a perfect place to explore beautiful architecture, enjoy world-class museums, and savor Belgian cuisine. The city is also a great starting point for exploring nearby European destinations due to its excellent transport connections.

Berlin is a vibrant city known for its rich history, dynamic culture, and exciting events. Since you have an event there, you'll experience the city's unique blend of historical landmarks, modern art scenes, and lively nightlife. It's a perfect place to immerse yourself in both culture and entertainment during your 3-day stay.

Prague, the capital of the Czech Republic, is a stunning city known for its historic architecture, charming old town, and vibrant cultural scene. It's a perfect destination to explore after Berlin, offering beautiful castles, picturesque streets, and delicious local cuisine. The city is well-connected by train and bus, making it an easy and enjoyable trip from Berlin.

Dresden, Germany, is a fantastic choice for your extended trip after Berlin. Known for its stunning baroque architecture and rich cultural heritage, Dresden offers a perfect blend of history and modernity. You can explore the beautiful Frauenkirche, stroll along the Elbe River, and visit world-class museums like the Zwinger Palace. It's also conveniently located near Berlin, making it an easy and scenic train ride away.