This is the Adventure or Bust School Bus Conversion, owned by high school sweethearts Brittany and Steven.
They chose a bus conversion over a traditional tiny house because it would cost less (they spent $17,600 on the build, see the breakdown here) and be easier to transport to accommodate their travels. The coolest part? You can follow the whole conversion on their blog, and if you have questions about this skoolie conversion, they provided a handy list of FAQs which they answered for you.
Check out their beautiful pictures and then enjoy the video tour on the last page!