One tiny stylistic suggestion: for a travel article, I'd be tempted to change "municipality of roughly 386,000 residents" to simply "municipality of about 386,000 people." It's a little less bureaucratic and reads more smoothly for a general audience.
Just a half hour minutes by car or around 40 minutes by train from Lisbon, Sintra feels a world apart. Nestled among the forested hills of the Serra de Sintra, this municipality of roughly…