Dublin is the 1991 "European City of Culture," and some of the city's most famous institutions have been rejuvenated as part of the yearlong cultural celebration.

- Events include a celebration of Bloomsday on June 16, with reenactments from James Joyce's "Ulysses;" the Dublin Literary Festival and International Writers Conference in June; the Dublin Street Carnival, June 29-30; a display of Irish prehistoric gold at the National Museum of Ireland in July; inaugural of a new pipe organ during concerts at the National Concert Hall, Sept. 28 and 30; and the Dublin Theatre Festival in October.

- And if you should be in Denmark July 4, take part in a traditional Danish celebration: American Independence Day. Held in the heather-covered hills of Rebild National Park near Aalborg, this is one of the biggest Fourth of July events outside the United States, with music, dancing, and fireworks. Radio personality and writer Garrison Keillor of Lake Woebegone fame is the featured speaker at this year's event. The Danish Tourist Board has more information: (212) 949-2333.

- The medieval castle setting for "Don Giovanni" and "Rusalka" is real, at the Savonlinna Opera Festival in Savonlinna, Finland, June 29-July 28. The Prague Opera House cast performs these festival highlights by Mozart and Dvorak, as well as Verdi's "Aida," Wagner's "The Flying Dutchman," and Smetana's "The Bartered Bride." There will be special performances of the Prokofiev ballet, "Romeo and Juliet," and appearances the the National Opera of Czechoslovakia and the Czech Philharmonic. Paintings and other works of Peter Paul Rubens will be displayed during the summer months at the nearby Retretti Art Center at Punkaharju, the largest art complex in Scandinavia.

The Finnish Tourist Board has more information. Call (212) 949-2333. --

- Events in Alberta, Canada, include the Calgary Exhibition and Stampede, July 5-14, with chuckwagon, rodeo and cowboy competitions, and the Banff Festival of the Arts, thoughout the summer, featuring, music, dance, drama and visual arts. - Eighteenth century houses and gardens in Leesburg, Va., will be open to visitors during Historic Garden Week, beginning April 21. The Oatlands Plantation mansion, a Greek revival building of the type common in Northern Virginia 200 years ago, and Oak Hill, the estate of James Monroe (with portico designed for him by Thomas Jefferson), are among the historic houses on the tour. With the exception of Oatlands, a National Trust for Historic Preservation property, all houses are privately owned, and several are being opened for the first time. Block tickets are $12 and benefit restoration and preservation projects for historic sites in the state. For information, call (703) 777-1169.

- Join the harvest at an early American farm during the month of June at the Museum of American Frontier Culture in Staunton, Va. Also at the museum this summer is the Ulster Heritage Symposium, June 14-15, focusing on Scotch-Irish heritage with genealogy workshops, foods and music. For registration information, call (703) 332-7850. --

- The Kimbell Art Museum in Fort Worth is venue for "Islamic Art and Patronage: Treasures from Kuwait," until May 12. These works, part of the collection of the Kuwaiti royal family, include illustrated and illuminated manuscripts, ceramics, glass, stonework, textiles and rugs dating from the 8th through 18 centuries. The objects were on tour in the Soviet Union when Iraq invaded Kuwait. For information, call the museum at (817) 332-8451. --

- The Aspen Music Festival and School at Aspen, Colo., June 28-Aug. 25 will include two performances in English of Mozart's "The Magic Flute," by the Aspen Music School, conducted by Claudio Scimone. Violinist Pinchas Zukerman and a number of the school's alumni will appear during the season. Ticket information is available from the festival at (303) 925-3254. --

- The iron horse, from its pony days to the present, is the reason for celebrating Railfair '91, May 3-12 in Sacramento, Calif. Antique engines from the 1880s to today's high-speed trains will be displayed in Old Sacramento, under the sponsorship of the California State Railroad Museum. Rail museums across the country and in the United Kingdom have loaned equipment for the fair. Call (916) 449-6711 for information. --