
Basilica di Santa Maria in Cosmedin (Basilica of Saint Mary in Cosmedin), Rome
The Basilica of Saint Mary in Cosmedin, a minor basilica in Rome, is a historical church dedicated to the Virgin Mary. Originally built in the 6th century as a deaconry, it served the Greek community of Rome and followed Eastern rites. Over time, it expanded and evolved, undergoing major renovations in the 8th and 12th centuries, when its bell tower was added. Today, the church is known not only for its architecture but also for its relics.
Among the most intriguing of them is a skull crowned with flowers, located in a side altar, believed to belong to Saint Valentine, the 3rd-century martyr. However, the true identity of this relic remains uncertain. Despite this ambiguity, it continues to draw interest, especially among those fascinated by the history of Valentine’s Day celebrated on February 14.
Still, perhaps the most famous attraction of the church is the Mouth of Truth. This massive marble mask, weighing about 1,300 kg (or 2,900 lbs), is believed to represent Oceanus, the Greco-Roman sea god. While its original function remains debated, theories suggest it was either a drain cover from the nearby Temple of Hercules Victor, used for sacrificial blood drainage, or a decorative element of the ancient Forum Boarium. By the 13th century, it was placed near the church, eventually moving to its current location in the 17th century.
The Mouth of Truth is best known for its medieval legend, which claims that anyone placing their hand inside and telling a lie will have their hand bitten off. Though this has never been proven (or at least, no official reports exist!), the myth has endured, attracting countless tourists eager to test their honesty—after paying a small fee, of course.
Its global fame skyrocketed in 1953, thanks to the film "Roman Holiday", starring Audrey Hepburn and Gregory Peck. In a memorable and most hilarious scene, Peck pretends to lose his hand in the Mouth of Truth, terrifying Hepburn in a brilliant unscripted prank that the director decided to keep in the final cut. Hepburn’s genuine shock added a great deal of charm to the scene. The film’s success turned the site into an international tourist hotspot, with visitors lining up from 9 a.m. just to recreate the famous scene.
If you're in Rome, why not try your luck? Just remember to have some cash ready—because if not, you might have to pay in other ways... including, perhaps, your own hand...
Among the most intriguing of them is a skull crowned with flowers, located in a side altar, believed to belong to Saint Valentine, the 3rd-century martyr. However, the true identity of this relic remains uncertain. Despite this ambiguity, it continues to draw interest, especially among those fascinated by the history of Valentine’s Day celebrated on February 14.
Still, perhaps the most famous attraction of the church is the Mouth of Truth. This massive marble mask, weighing about 1,300 kg (or 2,900 lbs), is believed to represent Oceanus, the Greco-Roman sea god. While its original function remains debated, theories suggest it was either a drain cover from the nearby Temple of Hercules Victor, used for sacrificial blood drainage, or a decorative element of the ancient Forum Boarium. By the 13th century, it was placed near the church, eventually moving to its current location in the 17th century.
The Mouth of Truth is best known for its medieval legend, which claims that anyone placing their hand inside and telling a lie will have their hand bitten off. Though this has never been proven (or at least, no official reports exist!), the myth has endured, attracting countless tourists eager to test their honesty—after paying a small fee, of course.
Its global fame skyrocketed in 1953, thanks to the film "Roman Holiday", starring Audrey Hepburn and Gregory Peck. In a memorable and most hilarious scene, Peck pretends to lose his hand in the Mouth of Truth, terrifying Hepburn in a brilliant unscripted prank that the director decided to keep in the final cut. Hepburn’s genuine shock added a great deal of charm to the scene. The film’s success turned the site into an international tourist hotspot, with visitors lining up from 9 a.m. just to recreate the famous scene.
If you're in Rome, why not try your luck? Just remember to have some cash ready—because if not, you might have to pay in other ways... including, perhaps, your own hand...
Want to visit this sight? Check out these Self-Guided Walking Tours in Rome. Alternatively, you can download the mobile app "ϳԹ: Walks in 1K+ Cities" from Apple App Store or Google Play Store. The app turns your mobile device to a personal tour guide and it works offline, so no data plan is needed when traveling abroad.
Basilica di Santa Maria in Cosmedin (Basilica of Saint Mary in Cosmedin) on Map
Sight Name: Basilica di Santa Maria in Cosmedin (Basilica of Saint Mary in Cosmedin)
Sight Location: Rome, Italy (See walking tours in Rome)
Sight Type: Religious
Guide(s) Containing This Sight:
Sight Location: Rome, Italy (See walking tours in Rome)
Sight Type: Religious
Guide(s) Containing This Sight:
Walking Tours in Rome, Italy
Create Your Own Walk in Rome
Creating your own self-guided walk in Rome is easy and fun. Choose the city attractions that you want to see and a walk route map will be created just for you. You can even set your hotel as the start point of the walk.
Rome Introduction Walking Tour I
Often referred to as the Eternal City, Rome holds a unique place in the story of Western civilization. Its influence shaped European culture through language, governance, and monumental architecture.
The name “Rome” originates from Romulus, the mythical founder of the city, who, according to legend, was the son of the war god Mars and Rhea Silvia, the priestess of goddess Vesta. Both,... view more
Tour Duration: 2 Hour(s)
Travel Distance: 3.3 Km or 2.1 Miles
The name “Rome” originates from Romulus, the mythical founder of the city, who, according to legend, was the son of the war god Mars and Rhea Silvia, the priestess of goddess Vesta. Both,... view more
Tour Duration: 2 Hour(s)
Travel Distance: 3.3 Km or 2.1 Miles
Hidden Art Treasures in Rome
Rome is one of the world's top living museums, replete with some of the most iconic pieces of art on the face of the planet. Famous artists, such as Michelangelo, Caravaggio, Raphael, Bernini, to mention but a few, had lived and worked here and left indelible marks in the city.
Needless to say that the abundance of masterpieces makes Rome crowded with tourists anxious to see them, causing... view more
Tour Duration: 2 Hour(s)
Travel Distance: 3.2 Km or 2 Miles
Needless to say that the abundance of masterpieces makes Rome crowded with tourists anxious to see them, causing... view more
Tour Duration: 2 Hour(s)
Travel Distance: 3.2 Km or 2 Miles
Rome Introduction Walking Tour II
Rome, the Eternal City, carries a legacy shaped by centuries of resilience, transformation, and cultural flourishing. The fall of the Roman Empire in 476 AD marked the end of an era, plunging Western Europe into the dark Middle Ages. Yet, even amid the disarray, Rome endured as a beacon of unity, largely due to its status as the center of Catholicism. The papacy wielded spiritual influence,... view more
Tour Duration: 2 Hour(s)
Travel Distance: 3.4 Km or 2.1 Miles
Tour Duration: 2 Hour(s)
Travel Distance: 3.4 Km or 2.1 Miles
Fountains and Squares Walking Tour
In Rome there is a lively piazza round almost every corner, each with its own unique atmosphere and its own story to tell. These public squares have been the center of Roman culture for centuries, and some of the city’s most popular attractions are located within them.
Most piazzas have a fountain in the center and a lot of cafes around. In fact, Rome holds the largest number of fountains in... view more
Tour Duration: 2 Hour(s)
Travel Distance: 4.1 Km or 2.5 Miles
Most piazzas have a fountain in the center and a lot of cafes around. In fact, Rome holds the largest number of fountains in... view more
Tour Duration: 2 Hour(s)
Travel Distance: 4.1 Km or 2.5 Miles
Trastevere Walking Tour
Heading down from the Vatican along the River Tiber, one is bound to find yet another city hidden within the city – Trastevere. This name translates literally to "across the Tiber". Indeed, crossing the picturesque Ponte Sisto (Sisto Bridge) to the west bank, you will find yourself in a charming neighborhood with a distinct character that sets it apart from any other part of Rome.
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Tour Duration: 2 Hour(s)
Travel Distance: 2.9 Km or 1.8 Miles
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Tour Duration: 2 Hour(s)
Travel Distance: 2.9 Km or 1.8 Miles
Vatican Walking Tour
Consisting of a walled enclave within the city of Rome, the Vatican is the world’s smallest sovereign state, as well as a symbol (and headquarters) of the Roman Catholic faith. Although only 44 hectares in surface, one is amazed by the vastness of this place and the sheer size of everything. When gazing around in all directions, you realize how much can be achieved by people working in faith for... view more
Tour Duration: 2 Hour(s)
Travel Distance: 3.4 Km or 2.1 Miles
Tour Duration: 2 Hour(s)
Travel Distance: 3.4 Km or 2.1 Miles
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