![sagrada familia](https://static-ssl.businessinsider.com/image/55e9c42edd089575338b46ae-4256-2832/shutterstock_87317419.jpg)
Shutterstock
Interior of La Sagrada Família in Barcelona, Spain.
- There are architectural masterpieces all over the world that tell a piece of our history.
- From Lalibela, Ethiopia to Sydney, Australia, Business Insider rounded up 30 buildings we believe are a must-see in everyone's lifetime.
- $4.
The world is filled with inspiring structures, from a $4 to a $4.
Read more: $4
In honor of our architectural heritage, Business Insider has selected 31 buildings that push the boundaries of structural expression - and we think you'll love them.
Keep reading for the full list.
An earlier version of this post appeared on Business Insider in April of 2016.