In the quiet, cobblestoned Mala Strana district of Prague, this Gothic-Baroque beauty feels like an urban oasis hidden in plain sight. A 14th-century monastery, the hotel blends original architectural features with contemporary touches. Its 99 rooms feature vaulted ceilings, parquet floors and views of either the old monastery courtyard or Prague Castle, says CNN about the Mandarin Oriental Hotel Prague, one out of the 20 hotels that CNN recently described as the most beautiful in Europe. View the full list of hotels and their description.