All globular star clusters are impressive, but Omega Centauri’s in a class by itself. Sparkling with 10 million stars, it’s the Milky Way’s largest globular.
The Wild Duck Cluster (Messier 11) is found in the constellation Scutum the Shield, just south of the Eagle’s Tail in the constellation Aquila. Unless you have eagle eyes, don’t expect to see this distant star cluster with the eye alone. Starting from the star Altair, star-hop to M11’s general location. Then find it with binoculars!