Two historic cottages, designated as cultural monuments, burned down in the České Švýcarsko National Park near Rynartice on Friday. Firefighters have declared a third-degree fire alarm.
Dozens of firefighters were taken by helicopter to the site, called Na Tokáni, a popular destination for tourists.
The blaze engulfed the privately owned wooden cottages built in the 1930s. A nearby former Alpine style hunting lodge and cluster of log cabins were undamaged.