YouTuber Ryan Trahan spent 24 hours in the world's smallest tiny house, which is just 25 square feet. Artist Jeff Smith designed the house in 2015 — it has a sink, an oven, and a hole for a toilet.

"So, I dropped out of college in 2018, and just started going crazy with it," said Ryan Trahan. Trahan is a YouTuber who lives here in Austin. What he did recently on South Congress might be one ...