Masons Arms is a pub (that also does food) that seems to have slipped through the cracks of Google's search results. It's like that hidden gem you stumble upon while wandering the streets, except this time, it's hiding on the internet. I was strolling one day in Mayfair when I stumbled upon this little pub, and since then, I've been coming back. It's super close to Regent's Street and all the high street shops.