Pilgrims arrive from all 31 states of Mexico, camping out in the large villa that houses the Basilica and various other chapels.

The old basilica sits beside the modern basilica which was designed by the Mexican architect Pedro Ramirez Vazquez , the same architect of the Aztec Stadium and the National Anthropology Museum.

Many pilgrims arrive on their knees, crawling from near as well as afar to fulfill promises made to the Virgen of Guadalupe.

The Pocito Chapel sits at the foot of the Tepeyac hill where Juan Diego witnessed an apparition of the Virgin Mary.

Inside the St. Michael chapel, pilgrims and visitors can view frescos by the muralist painter Fernando Leal.

Carrying an encased statuette of the Virgin of Guadalupe, this pilgrim heads to the basilica.

Religious services are held throughout the day at the Basilica with special guest groups taking reserved pews.

On the path to and within the Tepeyac villa, merchants sell any number of religious paraphernalia relating to the Virgin of Guadalupe, satisfying the millions of pilgrims that visit yearly.

A pilgrim takes his image of Jesus on the cross to the top of Tepeyac Hill, where the indigenous Juan Diego first saw the Marian apparition.

The interior of the basilica is designed so that the majority of the audience can see the pulpit and the sacred image.

The image of Santa Muerte is often seen with the world in hand, indicating the universal grasp of death.

Pilgrims flock to one of the thousands of altars set up throughout Mexico City, often bringing offerings ranging from cigarettes to flowers to food.

A Santa Muerte practitioner at the most popular altar in the Tepito neighborhood blows marijuana smoke upon an image of "The Skinny Lady" as the Santa Muerte is often called.

This young man's tattoo reads "The White Girl" in reference to the Santa Muerte. The devotion is commonly perceived as being a belief system for criminals and the lowest social classes.

Candles are lit in offering at Santa Muerte altars on the first of every month.

A Santa Muerte devotee takes a picture of the image on his celular phone in Tepito neighborhood in Mexico City.

Believers in other faiths such as Catholics and evangelicals reject the devotion of Santa Muerte, frequently accusing Santa Muerte followers of being heathens and practitioners of dark magic.

On the first day of every month, Santa Muerte devotees can be seen on all forms of transportation in Mexico City, from buses to subways as well as walking down the street with their idols in hand.

A devotee of Saint Jude Thaddeus makes a phone call at the exit of the subway in Mexico City.

Believers of Saint Jude Thaddeus overtake the streets near the Temple of Hipolito in the historic center of Mexico City every twenty-eight day of the month, bringing with them images of all sizes, including some larger than life.

The temple of San Hipolito offers express mass services due to the extremely high number of visitors on the twenty-eighth of each month. Such services last no more than a half hour and are tightly controlled by volunteers who corral the masses of people waiting to enter.

The temple of Saint Hippolytus fills to standing-room-only with worshippers who come from as far away as other states, hours away from Mexico City.

At the end of the mass, worshippers raise their statues of Saint Jude Thaddeus to be blessed.

A child is given a temporary tattoo of Saint Jude Thaddeus while wearing a costume of the saint.

Around the temple of Saint Hippolytus, an impromptu marketplace sets up, with vendors hawking everything from necklaces to figurines to holy water from the temple.

All modes of transportation in Mexico City are filled with worshippers of St. Jude Thaddeus, often clad in t-shirts and bracelets of devotion.