1. Antwerp Central Station
2. Overview: Begin your adventure at the magnificent Antwerp Central Station, often hailed as one of the world's most beautiful railway stations. With its stunning blend of neo-baroque and iron-and-glass architecture, this station itself is a sight to behold. Take a moment to admire the intricate details and grandeur before stepping out into the heart of the city.
3. Visit Duration: 30 minutes

4. Next Up: Walk towards the historic Grote Markt.

5. Grote Markt (Main Square)

6. Overview: Surrounded by guildhouses and the iconic Town Hall, Antwerp's Grote Markt is a living testament to the city's Golden Age. The square buzzes with energy, hosting seasonal markets, cafes, and the towering Stadhuis (City Hall). Don't miss the chance to climb up the Gothic-style Brabo Fountain to learn about the city's legendary founding myth.
7. Visit Duration: 1 hour

8. Lunch Recommendation: Enjoy a traditional Flemish lunch at De Vlaamse Pot, famous for its hearty stews and mussels.

9. MAS Museum aan de Stroom

10. Overview: Head to the striking MAS Museum aan de Stroom, a contemporary architectural marvel symbolizing Antwerp's connection to the world through trade and culture. The museum houses a diverse collection showcasing the city's maritime history and global art. Ascend to the rooftop for panoramic views over Antwerp and the Scheldt River.
11. Visit Duration: 2 hours

12. Following Attraction: Stroll along Het Eilandje, the trendy harbor district nearby.

13. Het Eilandje & Red Star Line Museum

14. Overview: Explore Het Eilandje, a rejuvenated dockside area now filled with hip cafes, restaurants, and cultural venues. Visit the Red Star Line Museum, which tells the emotive story of millions of European emigrants who left for America from this very spot. The interactive exhibits offer a poignant glimpse into the past.
15. Visit Duration: 1.5 hours

16. Evening Activity: End your day with a relaxing walk along the Scheldt riverbank, watching the sunset behind the silhouettes of ships.

17. Antwerp's Diamond District

18. Overview: Before departing, make a quick stop at the Diamond District, where over 80% of the world's rough diamonds are traded. Even if shopping isn't on the agenda, a visit to the Diamondland showroom or a guided tour of the diamond cutting workshops can be an enlightening experience.
19. Visit Duration: 45 minutes
20. Departure: Return to Brussels with a camera full of memories and perhaps a little sparkle in your pocket.

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This carefully curated itinerary ensures a fulfilling day in Antwerp, capturing both its historical depth and contemporary vibrancy. Remember to check train schedules in advance for a smooth journey back to Brussels.