Theatre

The Ronacher theater, originally Etablissement Ronacher, is a theater in the Innere Stadt district of Vienna, Austria. 

The new Etablissement Ronacher was not a playhouse, but equipped with tables and chairs. During the performance, people were allowed to drink, eat and smoke. However, due to the poor economic situation, Ronacher later had to give up the house. From 1890 onwards, artists performed more frequently, which attracted more suburban populations and drove away the aristocracy. Later, the program was supplemented by revues, operettas, dance and singing performances.

Dr. Rudolphus Rouse's Performance Hall was located at the North West corner of Main and Jefferson Streets, and played host to many theatrical and opera companies. It was called "Main Street" theater after 1902. 

http://collections.carli.illinois.edu/cdm/ref/collection/bra_peoria/id/1

The Royal Aquarium and Winter Garden was a place of amusement in Westminster, London. It opened in 1876, and the building was demolished in 1903. The attraction was located northwest of Westminster Abbey on Tothill Street. The building was designed by Alfred Bedborough in an ornamental style faced with Portland stone.

Selwyn's Theatre (1867–1870) of Boston, Massachusetts, was established by British-born actor John H. Selwyn. Architect Benjamin F. Dwight designed the building. Personnel included Dexter H. Follet, Arthur Cheney, H.A. M'Glenen, Charles R. Thorne Jr., and Charles Koppitz. In 1871 Selwyn's was renamed the "Globe Theatre."

Wikipedia

There are apparently two possible sites for a Soo Opera House.

...the boom times in the eighties brought out the old Opera House on Arlington Street, which did an excellent business under the management of Mr. Percy Jordan up to the time of its destruction by fire in 1917.

The Grand Opera House was constructed in 1886-87 on Court Street, by outside capital. This structure was afterward remodeled and enlarged and is now the First Baptist Church building.

Through the years there were eight theaters in Plainfield. The Stillman Music Hall (216 W. Front Street) was built in 1884. Its entertainments included plays, lectures, concerts, operas, minstrel shows and variety stars until it closed in 1901.  http://www.plainfieldlibrary.info/OnlineExhibits/LBNF/Theaters.html

The Taylor Opera House was built by James S. Taylor, according to the book series, “Images of America, Danbury”. He originally solved the problem of felting hats with the Taylor sizing machines (Danbury was the hat capitol of the world) by machinery. He was born in 1825 and was the great-great-great-grandson of Thomas Taylor, an original settler of Danbury.

Taylor Opera House was an opera house in Trenton, New Jersey. It was the city's first theater, and was founded by John Taylor, creator of Pork Roll and one of Trenton's leading citizens. The building first opened March 18, 1867 at 18 S. Broad Street. A historical marker was placed on the site after its demolition.

The Teatro Alfieri was a major theatre and opera house in 18th and 19th century Florence, located at Via dell'Ulivo #6 corner Via Pietrapiana in the Florence, region of Tuscany, Italy.

Wikipedia

The Real Teatro di San Carlo (English: Royal Theatre of Saint Charles) is an opera house in Naples, Italy. It is located adjacent to the central Piazza del Plebiscito, and connected to the Royal Palace. It is the oldest continuously active venue for public opera in Europe, opening decades before both the Milanese La Scala and Venetian La Fenice theaters.
https://en.wikipedia.org/wiki/Teatro_di_San_Carlo

The Upper Crust of Naples

The Temperance Hall was built in 1853 on a site fronting onto Granby Street, Leicester. The Architect was James Medland of Gloucester. The main hall was 100 feet long by 58 feet wide, and could seat 1,800 people. It had a balcony on three sides with a platform stage at the far end.

Built at a cost of $60,000, the top two levels of the Metropolitan’s three stories were devoted to its 1200-seat theater, while the street level featured storefronts, a cagey hedging of bets on the part of Butsch. Other theater managers struggled with low attendance and protests by local clergy of the “immoral character” of the theater, so Butsch called his establishment a hall, rather than a theatre.

t is unknown if this is the location of Mark Twain's lecture.  A literature search has so far failed to uncover another theater at this date.

The Theatre Royal, Drury Lane, commonly known as Drury Lane, is a West End theatre and Grade I listed building in Covent Garden, London, England.

The first large Virginia City theatre was Topliffe's on C Street, built in 1862.

Library of Congress

“A Minstrel Town”, by Marion S. Revett, published by Pageant Press Inc. NY, in 1955. pp 87-97.  

Wheeler Opera House, on the other hand, was a fabulous place (The Wheeler narrative is right after another hall called White’s). It became known all over the theatrical world for its modern arrangements, its magnificent decorations and its stage and lighting facilities. Jeff Wheeler, wealthy business man and sportsman, was proud of this monument to his family name. 

Whitney s Grand Opera House on northwest corner of Shelby and Fort Streets seated 1 400 and was first used in 1875 and was torn down in 1887.

The history of detroit and michigan or the metropolis illustrated, Silas Farmer 1889

Magnificent, majestic and massive, Detroit’s old Federal Building and Post Office was a towering palace of government that was more than three decades in the making, took seven years to build — and only 34 years to outgrow.

The Wieting Opera House was a performance hall in Syracuse, New York, that hosted operas, films, and other performances from 1852 to 1930. Initially built by John Wieting in 1852 as Wieting Hall, the building burnt down in 1856. He rebuilt it that year, and in 1870 renovated the hall into an opera house.

Next door to the Sprague Block, on the southwest corner of State and Tioga, stood the Wilgus Block (1868). Brothers John M. Wilgus, an architect, and Henry L. Wilgus, a real estate dealer, built the Wilgus Block on the site of Dwight Tavern, an early "publick house." Wilcox and Porter of Buffalo designed the building. The Wilgus Opera House, seating 1600 people, occupied the third and fourth floors. Retail stores occupied the first floor, offices the second. The opera house was Ithaca's main entertainment center until the Lyceum Theater was built on South Cayuga Street in 1893.