Gatlinburg From 321 Above, Great Smoky Mountains National Park, Tennessee

"You will never find a more wretched hive of scum and villainy. We must be cautious." — Obi-Wan Kenobi

Mystery Pyramid, Memphis, Tenessee

What is that mysterious pyramid by the I-40 Mississippi River bridge? Is it an arboretum? A casino? Learn next week in my "Weekly Travel Update" email. (Sign up at right of homepage.)