A day-trip to the charming resort town of Sintra is an absolute must do. Set high in the hills just a half-hour drive from Lisbon, this UNESCO World Heriage Site is lush and historic, with its own unique micro-climate. Home to hilltop palaces, beautiful estates, magnificent gardens, and a medieval castle, the town is rich in history. It is also steeped in myth and the occult, having served as a center for medieval religious orders like the Knights templar, whose symbols are strewn across the township. This will be a full day out, at the very least.