• Two market days a week, Tuesday and Saturday, and the square is empty the rest of the week
• Secondhand goods, not crafts: most stalls sell used objects and old curios, so expect rummaging rather than a souvenir shop
• National Pantheon next door, with São Vicente de Fora church on the same square, easy to fit into one outing

Feira da Ladra is a flea market that dates back to 1272 and now fills Campo de Santa Clara, behind the São Vicente de Fora monastery. Stalls sell secondhand and vintage goods, from azulejo tiles and tram souvenirs to plain bric-a-brac.

Kids can hunt for a small treasure with their pocket money. The National Pantheon and São Vicente church are a short walk away, so it pairs easily with a monument visit.