prison

Tower of Belem, northeast elevation Lisbon, Portugal

Tower of Gold, west elevation at sundown Seville, Andalusia, Spain

Old University of Heidelberg, Student's Carcer, graffiti Heidelberg, Baden-Wurttemberg, Germany

Tower of Belem, turret Lisbon, Portugal

Old University of Heidelberg, Student's Carcer, graffiti Heidelberg, Baden-Wurttemberg, Germany

Museum of the Inconfidência, avant-corps, frontispiece Ouro Preto, Minas Gerais, Brazil

Tower of Belem, east elevation Lisbon, Portugal

Old University of Heidelberg, Student's Carcer, graffiti Heidelberg, Baden-Wurttemberg, Germany

Museum of the Inconfidência, main facade (north elevation) Ouro Preto, Minas Gerais, Brazil

Tower of Belem, northeast elevation Lisbon, Portugal

Tower of Gold, northwest elevation at sundown Seville, Andalusia, Spain

Museum of the Inconfidência, clock tower Ouro Preto, Minas Gerais, Brazil

Tower of Belem, bastion with turret Lisbon, Portugal

Old University of Heidelberg, Student's Carcer, prison cell Heidelberg, Baden-Wurttemberg, Germany

Montale Tower, south elevation City of San Marino, San Marino

Museum of the Inconfidência Ouro Preto, Minas Gerais, Brazil

Old University of Heidelberg, Student's Carcer, staircase Heidelberg, Baden-Wurttemberg, Germany

Tower of Belem, balcony of the north elevation Lisbon, Portugal

Museum of the Inconfidência, statue representing the virtue justice Ouro Preto, Minas Gerais, Brazil

Museum of the Inconfidência, window Ouro Preto, Minas Gerais, Brazil

Tower of Belem, turret Lisbon, Portugal

Chapel Bridge, Water Tower Lucerne, Switzerland

Fortress of Guaita, bell tower City of San Marino, San Marino

Museum of the Inconfidência, fountain Ouro Preto, Minas Gerais, Brazil

Fortress of Guaita, Chapel of St. Barbara City of San Marino, San Marino

Montale Tower, south elevation City of San Marino, San Marino

Old University of Heidelberg, Student's Carcer Heidelberg, Baden-Wurttemberg, Germany

Tower of Belem, balcony of the east elevation Lisbon, Portugal

Museum of the Inconfidência, statue representing the virtue prudence Ouro Preto, Minas Gerais, Brazil

Fortress of Guaita, Penna Tower City of San Marino, San Marino

Museum of the Inconfidência, facade detail, windows Ouro Preto, Minas Gerais, Brazil

Tower of Belem, turret of the tower top Lisbon, Portugal

Chapel Bridge, Water Tower Lucerne, Switzerland

Old University of Heidelberg, Student's Carcer, graffiti Heidelberg, Baden-Wurttemberg, Germany

Fortress of Guaita, northwest elevation City of San Marino, San Marino