The demolition of Tokyo's National Stadium has been completed after a series of delays, clearing the way for a new structure that will be the centerpiece of the 2020 Olympics.

It took 5 months longer than anticipated to actually begin demolition (tender dispute), but now all that remains of the old stadium that hosted the 1964 Olympics are piles of rubble that will be removed by the end of September. Below webcam screenshots show difference between February and May:

Construction of the new stadium is set to begin in October. The new 80,000-seat stadium is expected to be finished in March 2019, and will also be used for the Rugby World Cup in September and October that year.

Plans for the new stadium have been criticized by some prominent architects, who say the design is too big and expensive. Revised and downsized concept released in response to the criticism managed to satisfy some, but not all critics.