Structures
Photos from around the world

Kasbah • Chefchaouen, Morocco

Stairs after the rain • Cordoba, Spain

Igreja de São Nicolau • Porto, Portugal

Alhambra • Granada, Spain

Passageway • Cordoba, Spain

Ceiling of structure next to Aya Sofia • Istanbul, Turkey

Choral Synagogue • Vilnius, Lithuania

Blue Mosque • Istanbul, Turkey

Saint Peter's Basilica • Vatican City

Guggenheim Museum • Bilbao, Spain