Last year, bike sharing took off in China, with dozens of bike-share companies quickly flooding city streets with millions of brightly colored rental bicycles. 

However, the rapid growth vastly outpaced immediate demand and overwhelmed Chinese cities, where infrastructure and regulations were not prepared to handle a sudden flood of millions of shared bicycles. 

Riders would park bikes anywhere, or just abandon them, resulting in bicycles piling up and blocking already-crowded streets and pathways. 

Vast piles of abandoned bicycles have become a familiar sight in many big cities. 

As some of the companies who jumped in too big and too early have begun to fold, their huge surplus of bicycles can be found collecting dust in vast vacant lots.

Sharing bicycles of different brands sit in a parking lot of the Huangpu District Vehicle Management Company in Shanghai, China.

Thousands of illegally parked share bikes are temporary detained in a sports field in Hefei, Anhui, China.

Drone overhead view of part of a group of thousands of unused share bikes in a field near Shanghai.

Nature begins to reclaim abandoned share bicycles, left in a temporary parking lot in Shanghai.

A worker rides a shared bicycle past piled-up shared bikes at a vacant lot in Xiamen, Fujian province. 

About 30,000 shared bikes have been dumped at two open spaces on Zhongxing Road this year.

Worker pick up abandoned bicycles from the streets.

In the photos, pictures show how the bikes have been on location for such a long time that plants have grown over them.