CoinFalcon - Buy and sell bitcoin, litecoin, ethereum and iota with ease.
SpaceX Falcon 9 Lander - Try (and fail) to land Elon Musk's SpaceX rocket
Coinflash - Automatically invest your spare change into cryptocurrency.
SpaceVR - Explore space with Oculus Rift (pre-launch)
Coinbase - Bitcoin, safe and easy.
The Size of Space - An interactive visualization of the universe