Mariánské Lázně (IPA: [ˈmarɪja:nskɛ: ˈla:zɲɛ]; German: Marienbad) is a spa town in the Carlsbad Region of the Czech Republic. The town, surrounded by green mountains, is an exquisite mosaic of parks and noble houses. Most of its buildings come from the town's Golden Era in the second half of the 19th century, when many celebrities and top European rulers came to enjoy the curative carbon dioxide springs.