Budapest-Belvárosi Nagyboldogasszony
Located at the Pest end of the Erzsébet híd (Elizabeth Bridge), this is not only the oldest church in Budapest, but the oldest building anywhere on this side of the river; its importance is illustrated by the evasive bend in the main road beside it. The relatively understated 18th-century Baroque facade belies the long history and variety of architectural styles you'll find inside, where a medieval Gothic nave stands over the remains of the original 11th-century Romanesque basilica (complete with fragments of frescoes) and the ruins of the Roman garrison that it was built upon. You will also find frescoes from the 14th and 15th centuries, a 16th-century Islamic mihrab (prayer niche)—a holdover from the 150-year Ottoman occupation of Hungary—a 19th-century rococo pulpit, and a 20th-century high altar. The church contains the relics of Saint Gellért, the bishop who was first buried here in 1046 after pagans pushed him off a hill across the river, as well as those of 11th century Hungarian king Saint László.