5City of Arts and Sciences, Valencia

Designed by Santiago Calatrava, the City of Arts and Sciences is a futuristic complex that looks like it belongs in a science fiction movie.

Its sleek white structures—such as the Hemisfèric (shaped like a giant eye), the Opera House, and the Oceanogràfic—stand out against pools of turquoise water. The blend of innovation and artistry makes this site one of Spain’s most unique landmarks. It’s not just a complex of museums and venues; it’s a bold architectural statement about Spain’s future.