For what started out as simple as a fallen log across a river, bridges have come a long way.
They're the superstars of the engineering world, sometimes the biggest celebrity in a city's skyline and push forward incredible economic and social development.
Because we've all drooled over the Golden Gate Bridge, the Brooklyn Bridge and that engineering masterpiece the Millau Viaduct - this is a list of some of the world's more unusual bridges.
Check out 18 others here.
5. Erasmusbrug Bridge, Rotterdam, Netherlands

Nicknamed "the swan", this cable stayed bridge crosses the Nieuwe Maas river in Rotterdam and was designed by Ben van Berkel.
Completed in 1996, the 808m long bridge has a 139m high asymmetrical pylon.
Its southern span also has an 89m long bascule bridge for ships that cannot fit underneath the bridge - and this bascule is the largest and heaviest in western Europe.
4. Hangzhou Bay Bridge, Zhejiang, China

At more than 36km long, the Hangzhou Bay Bridge is the longest trans-oceanic bridge in the world and is 'S' shaped to stop drivers from falling asleep.
The bridge has two spans - one 448m and another at 318m and will last more than 100 years thanks to the use of an orthotropic steel deck on its main spans and ramps.
Its 'S' shape and flashing lights not only keeps bored drivers alert, but is also supposed to protect the bridge from an annual tidal wave that affects the area.
3. Leonardo's Bridge, Norway
Conceived by Italian master Leonardo da Vinci, this striking bridge took almost 500 years to be realised.
The 100m long bridge is the first of the master's civil engineering designs to be built and stands in the small town of As in southern Norway.
It was considered impossible to build in da Vinci's time but was made a reality in 2001 by Norwegian painter and public art creator Vebjørn Sand who was struck by its simplicity.
2. Magdeburg Water Bridge, Magdeburg, Germany
First conceived in 1919, the construction of this navigable aqueduct water bridge was derailed by World War II and then then splitting of Germany into two.
But in 2003 the vision of connecting two important shipping canals through a bridge over the River Elbe was finally realised.
The canal spans 690m over land and 228m over water and links the Elbe-Havel Canal and the Midland Canal.
1. Henderson Waves, Singapore
While you actually cannot drive over this shapely pedestrian bridge, it is worth battling Singapore's traffic to get close enough to hike it.
The Henderson Wave bridge is the highest pedestrian bridge in Singapore at 36m high and links up the parks at Mount Feber and Telok Blangah Hill.
It opened in May 2008 and is already the talk of the town with its great views and stunning curves.