Some paper QSL cards received via the buro

Check out this stations antenna garden. Its huge. 

The card says not to return the QSL, but instead work them every contest. :)

Germany

I like history and thus the next card from Bulgaria.

With the downfall of the Second Bulgarian Empire in 1396, its territories came under Ottoman rule for nearly five centuries. The Russo-Turkish War (1877–78) led to the formation of the Third Bulgarian State 135 years ago. And this is the QSL to commemorate it all.

Bulgaria

(Click the QSL's for a larger version.)

PC1MH in space

NASA’s OSIRIS-REx mission and The Planetary Society invite you to submit your name for a round-trip ride to asteroid Bennu. Your name will hitch a ride to the asteroid, spend 500 days there, and return in the Sample Return Capsule to Earth in 2023.

Plus your name will be on the spacecraft, which will remain in space long after returning the sample return capsule to Earth.