4 Pics 1 Word Level 689

Answer:
Level
Hint
What is the answer to the 4 Pics 1 Word level with A pyramid with different colors, A greyish picture with tall buildings, Tetris blocks , and A piece of a ruler ?

Hint
What is the answer to the 4 Pics 1 Word level with A pyramid with different colors, A greyish picture with tall buildings, Tetris blocks , and A piece of a ruler ?