In Luxembourg City there are several public parks and each has its own unique function. Place des Martyrs is the one where people from the surrounding offices and tourists love to have their lunch. It's a very nice place to sit at and just muse or people-watch. If you're in the city, grab a sandwich and something to drink, then go and have your lunch at Place des Martyrs (also called Place des Roses by the locals) if the weather permits.
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