Air Force Academy Chapel, Colorado, USA: Hundreds of thousands of visitors come to the Barry Goldwater Air Force Academy, partly to see this chapel. Completed in 1963, it is the most visited man-made attraction in Colorado. The chapel consists of 100 tetrahedral blocks, each weighing 5 tons, covered with aluminum sheets the same type used in jet aircraft manufacturing.

St. Samaan El Kharaz, Moqattam, Egypt: The St. Samaan El Kharaz church is located in a less touristy area of ​​Egypt.

The entrance to the church is built of stone, but the rest is a series of interconnected caves. The largest cave forms an open-air auditorium with a capacity of 10,000 people.

St Michel d'Aiguilhe, Le Puy-en-Velay, France: Situated atop an 80-meter-high volcanic rock formation, the St Michel d'Aiguilhe chapel dates back to the 10th century. Visitors ascend via a staircase of 268 steps carved into the rock.

Temppeliaukio Church, Helsinki, Finland: Often called the rock church, Temppeliaukio is carved into a single block of rock.

The interior combines the rough surfaces of stone with magnificent copper-plated ceilings. The acoustics are so excellent that the church is sometimes used as a venue for concerts.

Holy Cross Chapel, Arizona, USA: This chapel sits atop a red rock formation in Sedona, 75 meters above the plains below. The Holy Cross is designed to form the shape of a cross when viewed from certain angles.

Las Lajas Sanctuary, Narino, Colombia: Located in a canyon on the Colombian-Ecuadorian border, Las Lajas Sanctuary was built in 1949. It is perhaps the only church in the world where visitors must carry a passport, as crossing the bridge leads to another country's border.

Herz-Jesu-Kirche, Munich, Germany: Located in the heart of Munich, this religious building is a glass-enclosed, cube-shaped structure. The interior is also a cubical structure made of maple wood, allowing the altar to be bathed in light while remaining isolated from the outside world.

Serbian Orthodox Church, Coober Pedy, Australia: This underground church is located in a desert area where temperatures can reach 40 degrees Celsius.

This place was built by the miners who lived in the area. Inside, there is a church hall, living quarters for the monks, and even a school.

Évry Cathedral, Essonne, France: This 12-story cathedral was built from one million red bricks. The glass roof and lemon garden are designed to resemble the crown of thorns that Jesus wore.

Saint Augustine Church, Paoay, Philippines: Saint Augustine Church, also known as Paoay Church, was built in the Spanish Baroque style. Saint Augustine has 24 buttresses to protect the structure from earthquakes. The mortar used here is a mixture of sand, lime juice, sugarcane juice, mango leaves, animal hides, and straw.

Christ Church, California, USA: This was the largest glass building in the United States when it was completed in 1982.

The cathedral's architecture creates a crystal-like effect when viewed from the inside.

Hallgrimur Church, Reykjavik, Iceland: This is the largest and tallest church in Iceland. Hallgrimur's architecture mimics Iceland's natural landscape, including volcanoes, icebergs, and basalt columns.

Nuestra Señora de la Altagracia Church, Higuey, Dominican Republic: Thousands of worshippers visit Nuestra Señora de la Altagracia annually to admire the image of Saint Altagracia. In addition, its unique architecture with a concrete facade and high arches is also a major attraction for visitors.

Borgund Church, Lærdal, Norway: This impressive church was built by nailing curved wooden planks onto a stone foundation. Borgund was constructed in 1180 and has stood for almost a millennium. It is only open to visitors during the summer months.

Brasilia Cathedral, Brazil's capital: This is one of Brazil's most unique structures, with its roof symbolizing hands reaching towards heaven.

The interior of the cathedral is flooded with light thanks to its stained-glass ceiling. The cathedral welcomes approximately 1 million visitors each year and is the most visited tourist attraction in the Brazilian capital.