Danube river
Widely regarded as one of the most beautiful cities in Europe, its World Heritage Sites include the banks of the Danube, the Buda Castle Quarter, Andrássy Avenue, and the Millennium Underground Railway, the first on the European continent. In addition, the largest thermal water cave system in the world was discovered under Budapest in 2008.
Budapest photos: Buda Castle | Museum of Ethnology | Budapest tram | Budapest Keleti railway station |
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