Royal flushes?

Globe correspondent Carmen Nobel set out to find the best places to heed the call of nature in the city.

"We recently drank lots of water and scoured the city for public places with quality facilities (and asked friends to weigh in on their favorite spots). Our definition of 'public' was admittedly loose — we included hotel lobbies — but before you write in to chastise us for trespassing, just try relieving yourself at the Ritz. Nice, right?," she writes.

See how well you know your public restrooms.