Historic clock tower illuminated at blue hour in Regensburg's medieval old town square, Germany Regensburg, Germany
Regensburg Danube River at Blue Hour with Museumzentrum Welterbe and Stone Bridge, Germany Regensburg, Germany
Visitors explore Valle de la Luna near San Pedro de Atacama, Chile Valle de la Luna (Moon Valley), Atacama Desert, San Pedro de Atacama, Chile
Po-i-Kalyan Complex courtyard with Kalyan Minaret and madrasas in Bukhara, Uzbekistan Bukhara, Uzbekistan
Kalon Mosque entrance with blue tilework at Po-i-Kalyan complex in Bukhara, Uzbekistan Bukhara, Uzbekistan
Panoramic view of Panj River valley with barren mountains near Khorog, Tajikistan, September 2018 Khorog, Tajikistan
Ancient Stone Fortress Ruins Overlooking Wakhan Corridor Valley, Ishkashim, Tajikistan Ishkashim, Tajikistan
Varkala Beach sunset with fishermen and tourists on Arabian Sea coastline, Kerala, India Varkala, India
Qingdao cityscape at sunset viewed from elevated hilltop viewpoint with skyline and Yellow Sea, China Qingdao, China
Tourists Visit Historic Old Town Square with Church and Event Seating in Budva, Montenegro Budva, Montenegro
Interior of Naples Cathedral (Duomo di Napoli) showing baroque altar and frescoed ceiling, Italy Naples, Italy