Blue tiles (Azulejos) on exterior of Chapel of Santa Catarina (Chapel of Souls), UNESCO World Heritage Site, Porto, Norte, Portugal, Europe

Detail of the Trevi Fountain, an 18th-century fountain, the largest Baroque fountain in the city, UNESCO World Heritage Site, Trevi District, Rome, Lazio, Italy, Europe

Surreal landscape of White Pocket with stormy clouds gathering overtop. They are comprised of swirling, multicolured Navajo Limestone with domes, hoodoos and potholes, Arizona, United States of America