- Wine cathedrals:
    Wine Cathedrals
    Cèsar Martinell
    Cooperativa Agricola de Rocafort de Queralt 
     Cooperativa Agricola de Vila-rodona  
    Sindicat Agricola d'Aiguamúrcia 
    Sindicat Agricola d'Alió  
    Sindicat Agricola de Cabra del Camp 
    Sindicat Agricola de Pinell de Brai  
    Sindicat Agricola de Pira 
    Sindicat Agricola de Sant Isidre de Nulles 
    Sindicat de viticultors de Montblanc 

- Disappeared Art Nouveau buildings:

    Works of Gaudí:
       La Miranda

    Works of Domènech i Montaner:
       1888 Universal Exhibition Hotel in Barcelona

    Works of Puig i Cadafalch:
       Trinxet House

    Works of Sagnier i Villavecchia: 
       Club Marítim de Barcelona

- Funerary Art Nouveau:
   Cemetery of Arenys de Mar
   Cemetery of Barcelona
   Cemetery of Cardedeu
   Cemetery of Lloret de Mar
   Cemetery of Olius   New
   Cemetery of Sitges
   See also Works of Domènech i Montaner in other countries

   Funerary Architecture of Puig i Cadafalch
   Funerary Architecture of E. Sagnier i Villavecchia

   Funerary Sculptures by Eduard B. Alentorn
   Funerary Sculptures by Llimona (see also The Angel in Comillas)
   Funerary Sculptures by V. Vallmitjana
   Funerary Sculptures by Reynés and Fuxà

- Unrealized Art Nouveau projects:
    Gaudí projects:
      Colonia Güell Church
      Hotel in New York (USA)
      School in Tangier (Morocco)

- Works of Catalan Art Nouveau architects and artists in other countries:
   Works of Gaudí:  
      El Capricho in Comillas (Cantabria - Spain)
      Botines House (León - Spain)
      Astorga Episcopal Palace (León - Spain)

   Works of Domènech i Montaner: 
      Cemetery in Comillas (Cantabria - Spain)
      Tres caños Fountain in Comillas (Cantabria - Spain)
      Gran Hotel in Palma de Mallorca - Spain)
      Pontifical university of Comillas (Cantabria - Spain)

   Works of Josep Grases i Riera:
      Longoria Palace in (Madrid - Spain)

   Works of Joan Martorell i Montells:
      Sobrellano Palace (Comillas - Cantabria - Spain)

   Works of Pau Monguió i Segura:   
      Cathedral main gate (Teruel - Spain)
      Ferran house (Teruel - Spain) 
      Villaespesa church (Teruel - Spain) 
      El Torico house (Teruel - Spain)
      La Madrileña house (Teruel - Spain)
      Escriche house (Teruel - Spain) 
      Arrabal schools (Teruel - Spain)
      Rubielos de Mora schools (Teruel - Spain)

   Works of Enric Nieto:
      Building Avenida de la Democracia (Melilla Spain-North Africa)
      Building "El acueducto" (Melilla Spain-North Africa)
      Building "La Reconquista" (Melilla Spain-North Africa)
      Cámara de Comercio (Melilla Spain-North Africa)
      Cristales House (Melilla Spain-North Africa)
      Tortosa House (Melilla Spain-North Africa)
      Vicente Martinez House (Melilla Spain-North Africa)
      Casino Español (Melilla Spain-North Africa)
      "El Telegrama del Rif" Journal (Melilla Spain-North Africa)
      Mezquita (Melilla Spain-North Africa)
      Cristal Palace (Melilla Spain-North Africa)
      Asamblea Palace (Melilla Spain-North Africa)
      Sinagoga (Melilla Spain-North Africa)