Old San Juan
Puerto Rico 00901
Tel: 787 723 2432
Concierge.com's insider take:
For a quirky souvenir, head to Butterfly People, a shop in a restored colonial mansion in Old San Juan. Exotic butterfly species from around the world are mounted in clear acrylic cases—sometimes one or two, sometimes dozens.
Open daily 10 am to 6 pm; call to verify Sunday hours.