grand tour

grand tour idiom
A comprehensive tour, survey, or inspection. For example, They took me on a grand tour of their new house, or The new chairman will want to make a grand tour of all the branches. Starting in the late 1600s this term was used for a tour of the major European cities, considered essential to a well-bred man's education. In the mid-1800s it was extended to more general use.

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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