1. St. Peter's Basilica
St. Peter's Basilica is located in Vatican City and is home to St. Peter's Tomb. Located in: Rome, Italy
2. Notre Dame Cathedral
The construction of Notre-Dame de Paris began in 1160 with the construction of gargoyles in a system of rain gutters.
Located in: Île de la Cité, Paris, France
3. St. Mark's Basilica in Venice
St. Mark's Basilica is one of the oldest churches in the world, originally built in 828 AD.
4. Florence Cathedral
Located in: Florence, Italy
5. Ras Rajas Conservation Area
The Las Lajas Reserve is located in the canyon of the Guaitara River in Colombia.
6. Sainte-Chapelle
Sainte-Chapelle is a medieval Gothic church commissioned by King Louis IX.
Located in: Île de la Cité, Paris, France
7. Reims Cathedral
Located in: Marne, France
8. Church of St. Wenzenz
St. Wenzenz's Church in Austria may have once housed a relic bearing the Blood of Christ.
9. St. Paul's Cathedral
The original church on the site of St. Paul's Cathedral was built in 604 AD.
Located in: Minnesota, USA
10. Basilica of Our Lady of Zaragoza
The original Basilica of Our Lady of Pilar in Zaragoza was built in Spain at the beginning of the 2nd century, but the current building was built on the same site in 1681.
11. Rouen Cathedral
Located in: Rouen, France
12. Cathedral of Our Lady of Lichen
The Basilica of Our Lady of Lichen is the largest church in Poland and one of the largest in the world.
Located in: Konin, Poland
13.Basilica of Our Lady of Dolours
The church is the tallest church in Asia and is located in India
14. Chartres Cathedral
Located in: Earl-et-Loire, France
15. Church of Saint-Michel d'Eguich
The church of St. Michel D'Ajich has been perched on top of volcanic rock for more than 1,000 years and is located on the Treren hill in Brussels, Belgium.