The Andromeda Galaxy is the closest large galaxy to our Milky Way. At 2.5 million light-years, it's the most distant thing you can see with the eye alone.
M5 in Serpens Caput is a refreshing sight through a small telescope, as thousands of stars cluster together into the tightly packed ball of this globular cluster.
The Eagle Nebula - aka Messier 16 or M16 - is home to several well-known cosmic structures, including the stunning Pillars of Creation and Stellar Spire.