Part of the design of the blockchain that Bitcoin uses is that every transaction is visible. The blockchain is highly visible. The table below shows the very latest blocks that have been accepted into the Bitcoin blockcahin:
This data is drawn from a site called http://blockr.io/ but there are several. If you visit https://blockchain.info/ you can even see the latest transactions that have been submitted but not yet accepted into the blockchain. In most of these online systems you can drill down into each transaction, including the as yet unconfirmed ones. Here's one chosen at random:
