Museum of the Tooth Fairy

The Museum of Ratoncito Pérez in Madrid is a hidden gem in the heart of the city, a place that combines magic, tradition, and history in a unique and fascinating way. Located on Calle del Arenal, this small but charming museum celebrates the figure of Ratoncito Pérez, a beloved character in Spanish culture known for the tradition of collecting children’s baby teeth and leaving a small gift or coin in exchange. The story of Ratoncito Pérez dates back to the late 19th century, when writer and priest Luis Coloma was commissioned to write a story for the young King Alfonso XIII, who had just lost a baby tooth. Coloma created the character of the mouse Pérez, inspired by oral tradition and popular beliefs, endowing him with an affectionate and kind personality. Coloma’s story describes Ratoncito Pérez as a mouse who lives in a small house behind a cookie box in a baker’s shop and who, at night, goes out to collect children’s teeth, leaving a gift in return. The museum is located in a historic building that once housed a toy factory, and the atmosphere is intimate and familiar. Inside, visitors can explore different rooms that tell the story of Ratoncito Pérez through interactive exhibits, dioramas, and vintage objects. Among the main attractions is a reconstruction of the mouse’s house, complete with miniature furniture, which enchants visitors of all ages. The museum also displays a vast collection of letters and drawings sent by children to Ratoncito Pérez, demonstrating how deeply rooted and beloved this tradition is in Spanish culture. An interesting anecdote related to the Museum of Ratoncito Pérez concerns the discovery of an ancient tooth set in an amulet found during the building’s restoration work. It is believed that the tooth, belonging to a child from the 19th century, was kept as a lucky charm, a common practice in many cultures. This artifact has added an additional layer of authenticity and charm to the museum, connecting the tradition of Ratoncito Pérez to a long-standing historical practice.