 The Thames & Hudson Dictionary of 20th Century Architecture
                    
        
            The Thames & Hudson Dictionary of 20th Century Architecture
        
        
        
                    
        
                
                            
        
        
        
        
        
                
                             Time Saver Standards for Architectural Design: Technical Data for Professional Practice
        
                    
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            Time Saver Standards for Architectural Design: Technical Data for Professional Practice
        
                    
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                             Dictionary of Architecture and Construction
                    
        
            Dictionary of Architecture and Construction
        
        
        
                    
        
                
                            
        
        
        
        
        
                
                             Structure that provides a continuous path or road over water, valleys, ravines, or above other roads.
Structure that provides a continuous path or road over water, valleys, ravines, or above other roads.
         Natural or artificially conveyed flow of water. In ancient Greece columnar shrines were built over springs and dedicated to deities or nymphs.
 Natural or artificially conveyed flow of water. In ancient Greece columnar shrines were built over springs and dedicated to deities or nymphs.