Pre-Book Your Guided Tour Slot Early

The hidden underground laboratories of the Speculum Alchemiae Museum can only be visited on guided tours, which operate with strict capacity limits of roughly ten to fifteen people per group. Due to the fragile nature of the historic underground rooms and the narrow corridors, walk-in spots sell out quickly, especially during weekends and peak travel seasons.

Secure your tickets online in advance to guarantee an English-speaking tour at your preferred time. If online slots are full, visit the ticket desk on Haštalská Street immediately upon opening in the morning to inquire about same-day cancellations or open standby slots.