The National Theatre Prague is a great stop for an opera lovers. Also for drama and ballet. Address and Contact Information: The National Theatre, Ostrovni 1, 112 30 Praha 1, Czech Republic. Correspondence to: The National Theatre, P.O. Box 865, Prague 1, Czech Republic, Ph: 420-224-901-448 Fax: 420-224-931-544 Email; info@narodni-divadlo.cz BOX OFFECE AT NATIONAL THEATRE: Mon - Sunday 10 a.m.- 18 p.m. PUBLIC TOURS OF THE THEATRE BUILDINGS: Saturday - Sunday 8.30 a.m. - 11 a.m. Ph: 420-221-714-151 420-221-714-152 Monday - Friday: 420-224-901-506 Narodni Divadlo - Natioanl Theatre since 1968.