The oldest and best-known of Budapest's uniquely Hungarian romkerts (ruin bars), Szimpla Kert is known for its wild, exuberant, grungy style. Built inside a former stove factory, this maze of dark rooms, eclectic furnishings, local art, and crazy light installations attracts a raucous crowd of locals and tourists frolicking their way through the night with wild abandon. Expect a noisy, lively night here with the occasional patron's dog darting between tables while the owner downs shots. Visit by day to get a better feel for the decor, although expect to be joined by a steady stream of influencers, as it's one of the city's top attractions. Szimpla also hosts a weekly farmers' market featuring all-natural products on Sunday from 9 am to 2 pm, and runs an antiques shop next door.