An up-close view of the Duomo di Milano, from Piazza del Duomo.
(Courtesy Evan Blaser/Flickr)
A view from the top of Duomo di Milano, in Milan, Italy, overlooking the city.
The Leifur Eirksson monument and the iconic Church of Hallgrímur, in Reykjavík.
(Courtesy Bernt Rostad/Flickr)
The Borgund Stave Church, in western Norway, dates to 1180.
Las Lajas Sanctuary sits at the end of a bridge that stretches over a dramatic gorge, deep in the mountains of southwestern Colombia.
Las Lajas looms over the rushing muddy waters of the Guaitara River, in Colombia.
(Courtesy Martin St-Amant/Wiki)
La Sagrada Família, in Barcelona, Spain, is still under construction—an ongoing masterpiece.
(Courtesy Gavin Gilmore/Flickr)
To reach the Saint Michel d'Aiguilhe Chapel, visitors must ascend 268 stone steps carved into the church's needle-like rocky mount.
(Courtesy EmDee/Wikimedia Commons)
The Church of Our Savior on Spilled Blood, in Saint Petersburg, Russia, is built on the site where Czar Alexander II was assassinated in 1881.
A close look at the onion-shaped domes of the Church of Our Savior on Spilled Blood, in Saint Petersburg, Russia.
An evening view of the Church of Our Savior on Spilled Blood, in Saint Petersburg, Russia.
(Courtesy Andrew Bossi/Flickr)
You might recognize Ely Cathedral, in England, from several Hollywood films, including 2010's The King's Speech.
(Courtesy Terre/Wikimedia Commons)