I'm a former army engineer, that sometimes means nerding out over a bridge. Critical infrastructure which lasts hundreds of years and still attracts tourists? What's not to love??? Even if bridges aren't your thing I think we can all agree that 700-year old construction techniques are pretty cool to watch and make for captivating entertainment when they're presented so well! Now imagine that the original construction took about 45 years to complete (1357 - 1402) and who knows how many laborers. At 59 seconds, this little video runs at about 9 months/sec of viewing time! Obviously that's significantly over-simplified, but I still think it's an amazing feat of human ingenuity and a great effort on behalf of those who planned and then completed the work hundreds of years ago.