Castelinho do Flamengo, Cultural center in Flamengo District, Brazil.

Castelinho do Flamengo is a three-story eclectic mansion with a covered terrace topped by a two-stage belvedere tower, plus a side annex with a ground-floor garage. Its facade carries female faces and feline heads at the corners, and the interior has stained glass, azulejos, terracotta ornaments and a wooden staircase. The noble floor has railings with stylized bees and stucco human figures.

Italian architect Gino Coppedè designed the building in 1916 for Portuguese entrepreneur Joaquim Silva Cardoso, with Brazilian architect Francisco dos Santos completing construction in 1918. The mansion emerged during a period when Beira-Mar Avenue was among Rio's most prestigious addresses.

Since 1992 the mansion has housed the Oduvaldo Vianna Filho municipal cultural center, named after the playwright and screenwriter known as Vianinha. A permanent room displays photos and posters of his plays and films, and the videoteca holds over 1,500 titles with fourteen individual viewing booths.

The building houses various spaces for events and exhibitions, including the Lumière auditorium and individual areas for activities. Visitors should note that accessibility and opening times may vary depending on current events and programs.

The facade carries female faces at its corners and stylised feline heads that visitors often miss. Inside, the upper floor's railings are cast with stylised bees, and the roof is laid with French tiles. The Italian architect Gino Coppedè sent the plans from Italy without ever travelling to Rio.