"Although it's a working train station, Atocha is known for much more than its resident mode of transit. In the spectacular atrium, the original part of the station is a botanical garden features more than 5,000 plants spanning 400 different species. Surrounding the gardens are dozens of shops and dining outlets, making this a hub of activity—even if you don't plan on actually leaving Madrid. And if you are, arrive early so you can explore the rich complex." - Ramsey Qubein
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