Seniors are normally entitled to reductions at museums, galleries, and castles. Usually the reduction is half the standard admission price for people aged 60 or over, though some attractions only discount above age 65.
Seniors (over 60) pay half price on Prague metros, trams, and buses. To get the senior discount, simply produce your passport at the ticket window and say "senior." Often you can get the discount simply for asking for it without having to show any documentation.
Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.