Paris, there's a whole syndrome named after it. Apparently (oftentimes Asian) people will travel there and be so disappointed they get genuinely depressed.

Don't get me wrong, it's a cool place to visit, but it's a big city like any other.

Depends on the situation. Can be anywhere from "oh well" to feeling like you're repeatedly being stabbed by a dagger coated in ghost pepper hot sauce.

insects

insects again

failure