Carrer de Joaquín Costa - In early 20th century Barcelona, Enriqueta Martí, an alleged serial killer, was accused of committing horrific crimes. She was said to have kidnapped poor children and forced them into prostitution. Disturbingly, she was rumored to have killed her victims and used their blood to make tuberculosis remedies, earning her the infamous title of the Vampire of Barcelona.

Mercat De Sant Antoni - Mercat de Sant Antoni, another market built on a site with a grim history, was once used for public executions. After these hangings stopped, the area remained unused for a long time.

Rocafort - Rocafort (L1) is a subway station that TMB employees dread working at during the night. Due to a series of tragic suicides, including four in one month, it has become known as the haunted station. There have been reports of ghostly apparitions on the platform and even on the tracks.

Carrer d’Estruc - Carrer d’Estruc is a mysterious narrow street, just a short walk from Plaça de Catalunya. Its history dates back to medieval Barcelona when it was outside the city’s walls. In the 15th century, this street was home to Astruc Sacanera, a famous astrologer and sorcerer.

Carrer dels Mirallers - Jacint Verdaguer, a famous Catalan poet and writer, became a priest in Vic at the age of 25. However, at 41, he experienced a personal crisis, feeling overwhelmed by selfishness and vanity, even after a pilgrimage to the Holy Land. It is believed that Verdaguer, along with his friend Father Joaquim Piñol, performed many exorcisms.

Mercat Santa Caterina - This lively market now stands where the Convent of Santa Caterina was founded in 1243. Sadly, the convent was demolished a year after the government seized church properties in 1836. According to local legend, the site is haunted, with claims of the devil appearing before many witnesses during black masses held by witches.