In Saint Louis

• The Arch and Old Courthouse
• A Joint Page for the Six Historic House Museums Located within the City Limits
• The Tower Grove Park, St. Louis' 289-acre National Historic Landmark
• The Campbell House Museum
• The Soulard Historic District's Building and Construction Code
• An impressive tour of some Lafayette Square residences
• Webpages for each of St. Louis' many neighborhoods
• A Preservation Plan -- with lots of information on settlement patterns and architectural styles -- for the City of St. Louis
• St. Louis' Cultural Resources Office, part of the city's Planning and Urban Design agency
• Built St. Louis -- alternating between exhilarating (what has been built) and depressing (what has happened to it), this is an extensive look at St. Louis buildings. Great links to other sources

  In Missouri

• Missouri's State Historic Preservation Office -- information on state and federal historic rehab tax credits, National Register listings, and more!
• Guide to Missouri's State Parks and Historic Sites
• Missouri Preservation, the state-wide nonprofit

• National Register of Historic Places
• Historic American Building Survey / Historic American Engineering Record
• The National Trust for Historic Preservation
• Preserve/Net hosted by Cornell University
• Phenomenal Library of Congress Site with architects' drawings for the U.S. Capitol
• Links to the Past, from the National Park Service
• A Virtual tour of the Biltmore House in Asheville, North Carolina
• A Fine illustrated Glossary of Building terms from Utah Heritage Foundation