Puente Laguna Garzón in Maldonado, Uruguay is a special bridge as Atlas Obscura explained:
The mile-long Laguna Garzón Bridge is among the most unusual in the world thanks to an empty, near-perfect circle at its center. Born equally of safety concerns – the road’s complementary one-way half-circles force motorists to slow down, thereby breaking up the mile-long stretch that otherwise might have been a tantalizing speedway – and of a need for amusement – it boasts an observation deck-and-fishing pier – the bridge has already gained international acclaim for its design.
The bridge was designed by Rafael Viñoly, famous for designing 432 Park Avenue in New York, 20 Fenchurch Street in London, and the Curve Theatre in Leicester.
Fun fact: Puente Laguna Garzón was built using 450 tons of steel, 500 cubic metres of concrete, and 40,000 metres of cables were used (according to Dezeen)