The Széchenyi Chain Bridge is a suspension bridge that spans the River Danube between Buda and Pest, the western and eastern sides of Budapest, the capital of Hungary. Designed by the English engineer William Tierney Clark, it was the first permanent bridge across the Danube in Hungary, and was opened in 1849.
A plaque on the Pest side of the river reads "To commemorate the only two surviving bridges designed by William Tierney Clark: The Széchenyi Chain Bridge over the Danube at Budapest and the suspension bridge over the Thames at Marlow, England."
The bridge is featured in the 2002 movie I Spy and in Katy Perrys music video Firework. The unforgettable climax scene in Bollywood blockbuster Hum Dil De Chuke Sanam was also shot on this bridge.