Mirror Lake and Half Dome, Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America

Taj Mahal, UNESCO World Heritage Site, Agra, Uttar Pradesh, India

Iceland, Reykjavik, The pearl, Huge hot water tank on a hill

Cupola, staircase, La Perla, Reykjavik, Iceland, Europa

Gran Telescopio Canarias, GranTeCan, GTC, the world's largest mirror telescope, Observatorio Astrofisico, astronomy, astrophysics, cupola of the observatory, Roque de los Muchachos, Caldera de Taburiente, La Palma, Canary Islands, Spain, Europe

Dome of the Reichstag building, interior, Berlin, Germany, Europe

View upwards to a blue glass dome, one hand holds a glass ball in which the dome is reflected, Schirn Kunsthalle Frankfurt, Hesse, Germany, Europe

United States Capitol and Capitol Reflecting Pool at night, Washington DC, USA, North America

Bundestag, Berlin, Germany, Europe

astronomical observatory on mountain Roque de los Muchachos optical mirror in foreground outdoors National Park Caldera Isla La Palma Santa Cruz Province Canary Islands Spain Europe