Kőbánya Synagogue, Budapest

The Kőbánya cellar system or cellar system of Kőbánya (IPA: [ˈkøːbaːɲɒ]; in Hungarian: kőbányai pincerendszer, "cellar system of Kőbánya", or kőbányai alagútrendszer, "tunnel system of Kőbánya"), sometimes known to non-Hungarians simply as the Kőbánya Mine, or the Kobanya Mine, is an extensive network of subterranea, or underground spaces, in the 10th district of Budapest (Kőbánya), in Hungary. It is considered to be the largest cellar complex in the country. The complex as a whole started as an underground limestone quarry in a wine-growing area of present-day Kőbánya in the Middle Ages. Later wineries and beer breweries were established on the premises and they continued to use some of the underground spaces. During the Second World War, the dimensions of the complex enabled it to be used as a covert aircraft engine assembly plant and a civilian hideout. Since 2008, Kőbánya Asset Manager Jsc. organizes free guided tours annually (during Saint László Days), which introduce visitors to both the complex and the Havas Villa (erroneously also known as the Dreher Villa), one of the most notable properties connected to it. The underground complex is one of the locations that are participating in the European Heritage Days.The floor area of the complex is variously estimated to be somewhere between 180,000–220,000 m2 (1,900,000–2,400,000 sq ft; 44–54 acres) and the combined length of the tunnels is estimated to be around 32–35 km (20–22 mi). Corridors 3–6 m (9.8–19.7 ft) wide and halls 10 m (33 ft) high are common in it. The deepest part is approximately 30 m (98 ft) under the ground surface. The nature of limestone makes the spaces of the complex moist and moldy, and some parts are actually heavily flooded by groundwater. Currently the bulk of the tunnel system is the property of the Kőbánya district government (through its company Kőbánya Asset Manager Jsc., Kőbányai Vagyonkezelő Zrt.), a small portion is still owned by the Dreher Beer Breweries, who still actively uses some of the cellar spaces, and other small areas are in use by wineries. As of 2007, the Kőbánya tunnel system was not under architectural protection. The complex is sometimes referred to as an "underground city" or as an "underground world".

Founded in 1907, Szent László Gimnázium is located in Kőbánya, Budapest’s 10th District. The school’s building was designed by the renowned Hungarian architect Ödön Lechner, and has been in use since 1915.The gymnasium runs 25 classes with eight specialisations. It also offers evening classes for adults. Therefore, the school’s enrolment is approximately 1000 students each year. This school is a UNESCO–associated school, which means that we teach a wide range of foreign languages, the students take part in many special programmes and competitions on the topic of foreign countries, the second-year students organise ‘UNESCO shows’ and many of the students participate in exchange programmes every year. New York fashion stylist, Edina Kolozsi Heath attended the school.

Elek Gyula Aréna in a multi-purpose indoor arena in Budapest, Hungary.The arena was opened in 1997 and renovated in 2016. Sports played include basketball, handball, and volleyball.

Kőbánya (literally: Quarry, German: Steinbruch) is the 10th district of Budapest (Hungarian: Budapest X. kerülete) and one of the largest by territory. It is located in southeast Pest, easily accessible from the downtown by Metro 3, whose terminus is named Kőbánya-Kispest. It has strong industrial and organized labour traditions; as such, it suffered a decline after the collapse of the Hungarian People's Republic in 1989–90. Today, the district is rebuilding itself into a living area for the middle class. Due to its large size, there are several diverse areas within Kőbánya, each with different architecture.

Gravity R&D (full name: Gravity Research & Development Zrt.) is an IT vendor specialized in recommender systems. Gravity was founded by members of the Netflix Prize team "Gravity". Gravity is headquartered in Hungary (Budapest & Győr) with a subsidiary in Japan.

Határ út is a station on the M3 (North-South) line of the Budapest Metro. Near the station, there are several tram and bus terminus, and a shopping centre. Határ út station named after the adjacent street Határ út, which literally means "(City) Border Street". Before the formation of Greater Budapest it was the border of Budapest Capital. The station was opened on 20 April 1980 as part of the extension from Nagyvárad tér to Kőbánya-Kispest.

Pöttyös utca (lit. Spotted street) is a station on the M3 (North-South) Line of the Budapest Metro. Next to the station, there is a huge socialist housing estate (microraion), which named after Attila József. The station was opened on 20 April 1980 as part of the extension from Nagyvárad tér to Kőbánya-Kispest.

Kincsem Park is a major horse racing venue in Budapest, Hungary. The 84-hectare park, named after the racehorse Kincsem, can accommodate thoroughbred racing and harness racing, and can also be configured as a concert venue. Although the track experienced a drop in attendance in recent years, it has enjoyed new popularity among racing fans due to the success of Hungarian racehorse Overdose. In August 2009, Madonna performed in front of a sold-out crowd of 41,000 fans as a part of her Sticky & Sweet Tour.

Örs vezér tere is the eastern terminus of the M2 (East-West) line of the Budapest Metro. It is also the starting place of the suburban railway lines H8 and H9. The station was opened on 2 April 1970 as part of the inaugural section of Line M2, between Deák Ferenc tér and Örs vezér tere.There are two shopping centers (Árkád, Sugár), an IKEA, and a tram-stop (Tram 3, 62, 62A). In addition, several bus (10, 31, 32, 44, 45, 67, 85, 85E, 97E, 131, 144, 161, 161A, 168E, 169E, 174, 176E, 231, 231B, 244, 261E, 276E, 277) and trolley bus (80, 81, 82, 82A) routes stop here. It is the largest meeting-point in East-Pest. Next to the station, there is a huge housing estate with concrete block of flats (Füredi microraion). Hungarian people usually call this station (and square) Örs. Örs vezér tere literally means "Square of Chief Örs", Örs was an ancient Hungarian chief. Örs is also a Hungarian given name for boys, which means "man" or "hero".

Pillangó utca (lit. Butterfly street) is a station of the M2 (East-West) line of the Budapest Metro. The station was opened on 2 April 1970 as part of the inaugural section of Line M2, between Deák Ferenc tér and Örs vezér tere.

Ecseri út is a station on the M3 (North-South) line of the Budapest Metro. Next to the station there are the northern blocks of Attila József microraion. The station is named after the adjacent street Ecseri út. The station was opened on 20 April 1980 as part of the extension from Nagyvárad tér to Kőbánya-Kispest.

Népliget or People's Park is the biggest public park in Budapest, Hungary. It is located southeast of the city centre, and covers an area of 110 hectares (270 acres). It was established to commemorate the 100th anniversary of the union of Pest, Buda and Óbuda. The park is the site of the Planetarium, which is a laser theatre, and the E-klub, the biggest night club in Budapest.