A chilling and memorable experience awaits all who delve into our 1700s Old Town underground vaults. Previously all connected, the vaults were at one time home to the poor, destitute and unsavoury characters living with no natural daylight, ventilation, toilets, heating, drainage or water supply. You shall see the worst slum conditions that people, with no choice, had to stay in. Every old brick and stone has a story to tell and you will have an unforgettable experience that shall live with you for the rest of your life. Top 10% of Tripadvisor attractions worldwide.