There are two different methods, shown below, that you can use to view your POAP collection. We recommend Option 2, as the POAP app is the most convenient way to keep track of your collection. The app also enables an additional method to claim POAPs, called secret words!
If you are wondering why you cannot view your collection within your wallet application (such as MetaMask), please see our article here: Why Can't I See POAPs Held Within My Wallet?
Option 1: Use POAP.scan
On the web, you can go to POAP.scan and enter your email address or Ethereum address/ENS name.