Budapest, being such an old city, has managed to hide some of its oldest spots in the guise of non-conventional beer pubs and, even more, turn them into the most popular drinking places for locals and tourists. Ruin pubs are like small visual art museums as each one's interior is very unique. After a day of sightseeing you may enjoy a great local beer in front of a picnic table hidden from the crowded streets of Pest in an old Jewish courtyard, or you may want to warm up with live DJs and grab a hot and spicy sausage accompanied with a glass of black stout in the cellar pub during a cold Hungarian winter evening.
We recommend you checking out at least few of the ruin pubs either by yourself or join the pub crawl. Some of the 'must-visit' pubs are Szimpla Kert (meaning Simple Garden)—the cult ruin pub with crazy and cozy atmosphere, Instant—a mix of pub, café, and cultural venue, claiming to be the biggest ruin pub in Budapest, and Fogasház—gallery-pub with some great cultural events, and Anker't—the largest beer garden of Budapest with some slam poetry nights and tasty food.
Do not forget to make a reservation, especially if you are planning to visit Budapest 'ruins' on weekend nights.