Features include the lighted underground Looking Glass Lakes, which reflect thousands of formations, waterfalls and creeks. Names, initials and dates going back to 1824 have been found on the cave walls and formations. On one large column, now named the Sam Houston Column, is inscribed "Sam Houston, 1830". Today the Caverns are beautifully lighted. The conducted tours, taking approximately 45 minutes, traverse smooth and almost level walk-ways through a veritable "fairyland" of beautifully colored formations and looking-glass rimstone pools. An authentic log cabin, built during the early 1800s has been given to the Caverns by the descendents of L. Russell Brown, an early pioneer of the area. It has been moved piece by piece and carefully reconstructed almost on the site of the original Ellis home. The cabin is now a museum of early American artifacts.