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Cathedral of the Immaculate Conception

307 Congress Street
Portland, Cumberland County, Maine, 04101

Cathedral of the Immaculate Conception
Photo: Richard Diekema License: CC BY-SA 3.0
The Cathedral of the Immaculate Conception is an historic cathedral in Portland, Maine that serves as seat of the Diocese of Portland.
The church, an imposing Gothic Revival structure built in 1866–69, is the tallest building in Portland and the second tallest in Maine.

The church is an imposing masonry structure, built of red brick, with sandstone trim and a slate roof. The main façade has a central entrance recessed in a sandstone Gothic arch, with a large stained glass rose window above. The main tower rises to the right of the main entrance, with buttressed corners, narrow Gothic windows, and an octagonal spire. Windows on the side walls are also Gothic, with buttressing between.

The interior of the cathedral is 186 by 70 feet (57 m × 21 m). The nave is 150 feet (46 m) long, rises 70 feet (21 m), and holds almost 1,000 worshipers. The tallest of the cathedral's three steeples is, at 204 feet (62 m).

Construction began in 1866. Construction of the church was interrupted by Portland's great 1866 fire, and it was not completed until September 8, 1869.The cathedral has undergone restorations in 1921, 1969, and 2000.

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