Way to Travel Tip:
Rather than buy your postcards at the end of your trip when you already have hundreds of photos on your phone of the exact same places, make the post card shop your first stop. You can easily sort out your "can't miss" attractions from your "I'll see them if I have time" and your "I'll pass" attractions. Take the cards with you to show to cab or Uber drivers, concierges, or any helpful person from whom you hope to get directions. A picture is worth a thousand words (in any language it turns out). And if you can get a postcard from the hotel where you are staying, then you can get directions back to your accommodations.