…traffic lights?

(I kinda like this)

…books?

(This is an ‘endless’ well of books in the Prague National Library)

…chairs?

(No comment, just WTF?  Did somebody yell, “Three chairs for everyone!”)

…litres in a swimming pool?

(World’s largest pool at the San Alfonso del Mar Resort in Chile.  The pool is eight hectares, or 6000 normal 8m pools.  Would not like that chlorine bill.)

…metres below you?

(Sorry,  just my vertigo thing!)

…minutes under a tanning lamp?

…street chalk paintings?

(Never!  How good is this?!  Artist: Kurt Wenner)