Museo e Cripta dei Frati Cappuccini

The Capuchin Crypt is exactly what it sounds like - the arranged bones of 4,000 friars from the 17th-19th centuries forming intricate wall decorations across six underground chapels. You'll see chandeliers made from arm bones, flower patterns created with ribs, and hundreds of skulls embedded into walls like macabre wallpaper. It's surprisingly artistic rather than purely ghoulish, representing the Capuchin monks' meditation on mortality and the temporary nature of earthly life.

The visit flows through the small museum upstairs first, then down into the dimly lit crypt chambers. Each chapel has its own bone theme - the Crypt of the Skulls, the Crypt of the Pelvises, and so on. The atmosphere is reverent rather than creepy, with soft lighting and hushed voices. You'll spend most of your time studying the intricate patterns and marveling at the craftsmanship involved in arranging human remains so systematically.

Entry costs €10, which feels steep for what's essentially a 20-minute experience once you skip the museum portion upstairs. The crypt itself is genuinely fascinating, but the preceding rooms with paintings and religious artifacts feel like filler. Come for the bones, not the art history lesson. The gift shop's €15 photo book is actually worth it since photography is banned inside.