Basilica -

: Massive crowds, strict dress code (shoulders and knees covered), and narrow, steep stairs for the dome climb. Basílica de la Sagrada Família ClosedBarcelona, Spain

: Free entry, unparalleled historical and artistic significance, stunning architecture. basilica

Gaudí's unfinished masterpiece is praised for its unique "tree-trunk" columns and forest-like interior. Saint Mark's Basilica ClosedVenice, Metropolitan City of Venice, Italy : Massive crowds, strict dress code (shoulders and

Noted for maintaining a "classic, gentle, historic feel" in the middle of Manhattan. Other Interpretations : Massive crowds

Basilica of the National Shrine of the Immaculate Conception ClosedWashington, DC