Features

• Infinite
• Transactions are saved in chronological order
• Accumulating growth 
• Contains complete information about different user addresses and their balances from  the initial block (genesis block) to the most recent block.
• Transactions cannot be deleted, copied or modified
• Some people claim that due to the accumulating growth, there are complications in storage and synchronization 

Picture resouces:

 https://blockgeeks.com/guides/what-is-blockchain-technology/