This gracious red-brick neo-Gothic church is dedicated to St Gertrude, the patron saint of travellers. Surrounded by flamboyant art nouveau architecture, its austere 19th-century interior is a stark counterpoint. St Gertrude's is also a musical venue. Its organ, built in 1906, is one of the city's best and classical-music concerts take place regularly.
Note the art nouveau gem at 蘑ertr奴des iela 10. Try to count the panoply of faces on the 1903 facade.