📜 Eerie art wall in Prague's Wallenstein Palace gardens, an artificial grotto constructed 1623-1630. 🔍 Features stalactite-like rocks forming grotesque human and animal faces. # Why Go 🗿 Discover hidden grotesque human and animal faces. 🕵️‍♀️ Unravel the mystery of potential secret passageways. 🌳 Explore lush baroque gardens with peacocks and an aviary. # Why Avoid 🚫 Only open seasonally (April to October). # Tips 👀 Take your time to spot all the hidden faces. 🦉 Visit the nearby aviary to see owls and exotic birds. 📍 Use 'Dripstone Wall' for accurate navigation. # Hours 🕒 Open April to October. Mon-Fri 7 am-7 pm, Sat-Sun 9 am-7 pm.