Today, bridge buildings have become a fundamental part of the urban landscape.

Their significance has transcended their physical form to become a symbol of cultural and political progress. In some cities, bridges have become destinations in their own right, attracting millions of visitors each year for photo ops, so be sure to check them out if you get the chance.

1. Golden Gate Bridge

The Golden Gate Bridge is one of the world's most famous bridges and is a marvel of modern bridge engineering. Located over the Golden Gate Channel in California, USA, the bridge is more than 1,900 meters wide and took four years and more than 100,000 tons of steel to build at a cost of $35.5 million.

Because of its novel structure and extraordinary appearance, the bridge is widely regarded as a "model of beauty" by the international bridge engineering community and has been named one of the modern wonders of the world by the American Institute of Architects and Engineers. It is also one of the most photogenic bridges in the world.

The Golden Gate Bridge is an outstanding representative of the suspension bridge industry, not only has it been playing a leading role in large suspension bridge projects, but also is a benchmark for the construction and operation management of all large projects.

2. Sky Bridge

The Sky Bridge is one of the tallest monolithic structures in the world and one of the most spectacular bridges in the world, with a large and heavy "steel frame" supported by a single pillar.

Located at the top of a hill in Malaysia's archipelago, the bridge is a half-moon pedestrian bridge built in 2004. The bridge is shaped like a circle, the main body is made of steel, and the whole bridge is at an altitude of 687 meters above sea level, connecting two hills, hence the name "Sky Bridge".

The bridge provides a 360-degree view of Langkawi Island and the Andaman Sea, making it an important tourist attraction in Malaysia.

3. Hussaini Bridge

The Hussaini Bridge is known as the most dangerous bridge in the world, a rope bridge constructed of many trembling wooden planks.

For most citizens, it is the only way to reach Rawalpindi. The prevailing means of travel in the region are crossed cables and streams and bridges in the mountains of northern Pakistan.

One of them is the Hussaini Suspension Bridge. This rope bridge is long and broken, many planks have fallen off, and it has to withstand high winds when crossing it.

Although it looks very dangerous, it is already a relatively safe bridge and has become a famous adventure tourist attraction.

4. Hangzhou Bay Bridge

The Hangzhou Bay Bridge is located over the Qian Tang River in the Yangtze River delta of China, with a total length of 36 kilometers. It is also one of the most difficult bridges to build in the world.

It is a creation and a miracle in the history of bridge building in the world. The Hangzhou Bay Water Research Project lasted for nearly ten years before the bridge was built.

The project took nearly five years, the amount of concrete equivalent to rebuilding eight National Theatre, the amount of steel equivalent to rebuilding seven "bird's nests" and the length of 21 Wuhan Yangtze River Bridge.

The bridge also created a number of world firsts. The construction of the bridge has led to the rapid development of the economy in the Yangtze River Delta region.

Have to sigh that human wisdom, can create so many beautiful and magnificent Bridges！