Linz is a city in Upper Austria, located on the Danube River between Salzburg and Vienna. The Main Square in the Old Town is dominated by Baroque buildings, including the Old Town Hall and the Old Cathedral. Near the river is the Museum of Contemporary Art "Lentos" with an extensive collection of works by contemporary artists. On the other side, an unusual building of the Center for Electronic Art was erected, which is dedicated to the theme of society, technology and the future.

The main street "Landstraße" leads from the "Blumauerplatz" to "Taubenmarkt" (Pigeonmarket) near the main square. The main square (built in 1230), with an area of 13,200 m2, is one of the largest converted squares in Europe. In the middle of the main square the high "Pestsäule" ("plague column", also known as "Dreifaltigkeitssäule" (Dreifaltigkeit means Holy Trinity)) was built to remember the people who died in the plague epidemics.

Around the main square are many historically relevant and architecturally interesting houses, such as the Old Town Hall, the Feichtinger House with its carillon, which changes the melody depending on the season, the Kirchmayr House, the Schmidtberger House or the bridgehead buildings, which house a part of the Linz Art University.

West of the main square there is the old quarter with many other historic buildings, such as Renaissance houses or older houses with a baroque face.

Near the Schloss/castle, being the former residence of emperor Friedrich the III—the oldest Austrian church is located: Sankt/Saint Martins church. It was built during early medieval Carolingian times.

As many central European cities, the cityscape of Linz is characterised by small and several sacred buildings. The Mariä Empfängnis Dom or New Cathedral is the biggest church in Austria, not by height (it is roughly 2 metres shorter than the St. Stephen's Cathedral (Stephansdom) in Vienna), but by capacity.

The historic centre is characterised by its medieval architectural style, whereas in those parts of the city that border with the historic centre the architecture is of neoclassical, neo-baroque and neo-renaissance styles. Even further from the historic centre there are living areas, such as Franckviertel, Froschberg, Bindermichl and Kleinmünchen southern of the Danube and Alt-Urfahr northern of the Danube. These areas are where residential buildings can be found that are still referred to as "Hitlerbauten" or "Hitler buildings", because they were built during the interwar period and the time of Nazi dictatorship. The residential area called Gugl became a well liked living area among the wealthy at around 1900, which is why there are numerous villas still there today.

The city is now home to a vibrant music and arts scene that is well-funded by the city and the state of Upper Austria. Between Lentos Art Museum and the "Brucknerhaus", is the "Donaulände", which is also referred to as "Kulturmeile" ("culture mile"). This is a park alongside the river, which is used mainly by young people to relax and meet in summer. It is also used for the Ars Electronica Festival in early September and the "Stream Festival", which takes place annually. In June, July and August the "Musikpavillon" is placed in the park where musical groups of different styles perform on Thursdays, Fridays, Saturdays and Sundays free of charge.
Linz has other culture institutions, such as the Posthof, which is near the harbour, and the Stadtwerkstatt, which is by the river Danube. The Pflasterspektakel, an international street art festival, takes place each year in July in and around the Landstraße and the main square. Linz was the European Capital of Culture in 2009, along with Vilnius, the capital of Lithuania.

On 1 December 2014 Linz was accepted into the international network of UNESCO Creative Cities (UCCN) as a City of Media Arts. Currently 69 cities worldwide are members of the Creative Cities network, which is divided into seven thematic categories: literature, film, music, folk art, design, media art and gastronomy. The title goes to cities which enrich urban life and successfully involve society in electronic art forms through the sponsorship and integration of media art. 

The Brucknerhaus, a famous concert hall in Linz is named after Anton Bruckner. It is situated just some 200 metres away from the "Lentos". It is home to the "Bruckner Orchestra", and is frequently used for concerts, as well as balls and other events. It is also the venue of the "Linz Fest" which takes place annually in May as well as one of the venues during the Ars Electronica Festival in early September. In June, July and August the "Musikpavillon" is placed in the park where musical groups of different styles perform on Thursdays, Fridays, Saturdays and Sundays free of charge.

The Musiktheater (music theatre) was opened in April 2013 and is considered to be one of the most modern opera houses in Europe. It offers five stages of varying sizes; the big hall ("Großer Saal") with 1,200 seats, the BlackBox with up to 270 seats, the BlackBoxLounge with up to 150 seats, the orchestra hall ("Orchestersaal") with up to 200 seats and another stage in the foyer ("FoyerBühne"). Performances at the Musiktheater include operas and typically Austrian operettas, ballets and musicals.

The ensemble of the Landestheater (regional theatre) Linz used to perform musical productions as well as theatre productions at a venue located on the "Promenade" in the inner city of Linz (this venue is still referred to simply as "Landestheater"). Since the opening of the new Musiktheater, only theatre performances take place at the "Promenade" venue, whereas musical productions are shown in the Musiktheater. The Landestheater Linz is especially renowned for its theatre for young audiences called u\hof:.

The Kapu is a venue for various contemporary music styles, such as hip hop, noise rock and crust and also houses a cinema and a recording studio.

The Posthof is one of the biggest event centres in Linz with three rooms offering up to 630 seats or standing room for about 1,200 people respectively in the big hall. The programme focuses on contemporary art and covers concerts, theatre, cabaret, dance and literature. Artists from Linz are regularly invited in order to improve the local cultural scene; e.g. bands from Linz get the opportunity to play as pre-bands alongside nationally and internationally known artists. Altogether a total of about 250 events take place at the Posthof each year with a total number of visitors of about 80.000.

The Stadtwerkstatt is an independent association for culture and was founded in 1979. Its headquarters is located in the Urfahr district on the north bank of the Danube close to the Ars Electronica Centre and serves as venue for music events and other artistic and cultural activities. Situated at the same address is the Stadtwerkstatt's own Café Strom café/bar.

Wolfgang Amadeus Mozart wrote his Symphony No. 36 (1783) in Linz for a concert to be given there, and the work is known today as the Linz Symphony. He reportedly also composed his Piano Sonata 13 in B flat while in Linz, although it was published in Vienna.

Anton Bruckner was born in Ansfelden near Linz and spent several years working as a conductor and organist in Linz, where he also started to compose. The first version of Bruckner's Symphony No. 1 in C minor is known as the Linz version. The Brucknerhaus, a concert hall in Linz as well as its annual international Brucknerfest are named after him.

The musician and DJ Marcus Füreder, better known by his stage name Parov Stelar was born in Linz.