The cover of a Souvenir Program that was created for the March 1904 dedication.
Graphic from Wikipedia / James Steeber Archive

In another circa-1907 image, we see the "glass hallway" (3rd Street Arcade) concourse of stores, which leads into the grand Rotunda.
Photo from John J. Keyes / Dayton Metro Library, Dayton Postcard Collection / Identifier number dpc 0070

A vintage view of the Rotunda and Food Market, which occupied its ground floor. 2 upper levels of offices and apartments surround the area.
Photo from The American News Company / Dayton Metro Library, Dayton Postcard Collection / Identifier number dpc 0068

The Gem City's ARCADE was a mixed-use complex years before the term had even been conceived. The core of the structure, indicated in black, was built between 1902 and 1907. Structures such as the Commercial Building and Miami Savings Bank Building came along a bit later. A new McCrory's dime store opened in December 1924.

DAYTON ARCADE TENANTS 1924:

ARCADE MARKET "Under the Dome" / J.G. McCRORY 5 & 10 / A. Ellman Company Jewelers / Arcade Millinery / Armstrong's Barber Shop / Baynham Shoe Company / Blue Bird Shop infant's wear / Bramson Brother's Men's Furnishings / Buck Gutwein Men's & Women's Shoes / Carl Myers Jewelers / Cody's Hat Store haberdasher / Dayton Camera Shop / Dayton Confectionary Sweet Shop / Golden Cigar Store / J. F. Blocker Dry Cleaning / John A. Schoenhals Shoes / June Ray Candy Shop / Kline & Reichart Musical Instruments / Laughlin's Restaurant / M. Anderson Florist / Ochiltree's Gift Shop / Parisian Silk Shop / Rosaiter-Jarret Furniture Company / White Sewing Machine Company