It took me a while to pick *just one* ending theme song. There are so many! One of the things I love most about anime is the music. It often compliments the series in ways that the music in American television shows don't explore.
The design work done on Samurai Champloo is still incredible to me, years after seeing it.
The fusion of hip-hop and traditional Japanese art aesthetics is incredible! It gave the story this strange energy, making the world feel like it was out of place somehow- definitely captured the growing pains of the period in a beautiful way.