Romanesque

Somewhat resembling the Roman; -- applied sometimes to the debased style of the later Roman empire, but esp. to the more developed architecture prevailing from the 8th century to the 12th.

Of or pertaining to romance or fable; fanciful.

Romanesque style.

a style of architecture developed in Italy and western Europe between the Roman and the Gothic styles after 1000 AD; characterized by round arches and vaults and by the substitution of piers for columns and profuse ornament and arcades