The song "Unknown Traveler" by U.D.O. tells the story of a restless adventurer who has traveled to various famous landmarks and places across the world and time. The lyrics describe his journey through the gates of Babylon, the pyramids of Egypt, the Taj Mahal, and the lost city of Atlantis. The traveler also mentions counting the bricks along the Great Wall of China, riding the slopes of Kathmandu, and tasting the rocks of Mount Everest. He claims to have seen everything and experienced it all through time and matter, suggesting that he has achieved a deep understanding and knowledge of the world. However, despite his vast experiences and journeys, the unknown traveler expresses a desire to come back and return home. He feels that he is under attack and seeks refuge in his familiar surroundings. The lyrics also touch upon the mythical legends of Camelot, searching for wood for Merlin's wand, and the endless exploration of different places and times. The "unknown traveler" is portrayed as relentless in his quest for discovery and adventure. Overall, the song explores themes of curiosity, exploration, and the desire for homecoming in the midst of a life spent constantly on the move. It conveys a sense of wanderlust and the eternal search for meaning and fulfillment through travel and exploration.