A bridge is a large structure used to cross obstacles. Modern bridges are constantly innovating in terms of structural forms and materials while satisfying their functional uses. Whether it is curved or straight, wood or reinforced concrete, under the designer's hands, these bridges that we are accustomed to under our feet suddenly become very interesting. Here are the coolest bridges in the world.

The design of the Five Ring Bridge combines the undulating mountain environment around the project and the Olympic symbol formed by the five rings. The circle represents the unity and harmony of the five continents, and the bridge connects various important nodes, formally integrating the new district with the urban texture of Beijing.

This sculptural ring bridge is a passage between the city and the sea in Denmark, allowing people to experience endless panoramic views in constantly changing scenes. The entire bridge is 60 meters in diameter, half above the shallow sea and half above the beach. The pillars of the bridge are two meters deep into the shallow sea, backed by forests and historic castles, and looking out to the boundless sea.

The circular bridge is made up of 5 circular platforms in series. Its wide bridge deck can support people to walk, cycle, and walk. At the same time, the curved boundary can provide a variety of different excellent angles to see the city.

The railway is the finger of the city, which implicates and touches other cities. Instead of placing a purely functional pedestrian bridge, it is better to make it into an art installation - put a ring on the "finger": the image of the ring has become the symbol of British railways, this is where people meet, reunite and kiss goodbye.

On the basis of vision and theory, the bridge is an unobstructed Mobius ring, which combines mathematical rationality and artistic beauty.

The project is a garden of public space transformed from a 983-meter former viaduct. The abandoned viaduct has been regenerated into a hanging garden corridor, with more than 200 local species of trees, flowers and plants forming a "botanical library" passage for pedestrians and tourists to stop and relax.

The "Bostanl Footbridge" fills in the missing pieces in the circulation of the coastal promenade. Through its slightly bowed longitudinal section and specially designed beams, the footbridge allows small boats to pass under it and provides access to the pontoon dock in the creek. The architects designed an asymmetrical cross-section for the bridge, allowing visitors to sit or lie down and enjoy the beautiful views of the bay.

This dynamic concrete pedestrian bridge is located at the new airport in Reykjavik, Iceland. The concrete shell is designed to be very light and thin, the curved shape has tension, the bridge column is quite thin, and the entire bridge body is light and flexible.

This 72-meter-diameter circular bridge for bicycle traffic is located in Eindhoven, the Netherlands. Its modern design, thin volume and dazzling lights, like flying butterflies, have become an exciting new landmark of transportation in the city.

The bridge is 130m long, winding through the trees and branches. The bridge is roughly crescent-shaped, with two places in contact with the forest surface. The highest point is 12m (about 3 stories high). The bridge breaks through the trees and leaps over the treetops, bringing the extraordinary feeling of treetop viewing, showing the Cape 360-degree panoramic views of the city and surrounding majestic mountains.