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.

Hamilton's hall erected on the site of the Rurode Dry Goods Company building on Calhoun street .

The location of Mark Twain's lecture in Akron, OH on December 30, 1868 is noted as the Methodist Church.  The location and name of the site in 1868 has not been definitively determined but one possibility is ...

The Universalist's Old Stone Church is gone, but the Sojourner Truth
Building in its place is named for an event that put Akron on the civil-rights map.

In 1811, Paul Williams settled near the corner of what is now Buchtel Avenue and Broadway. He suggested to General Simon Perkins, who was surveyor of the Connecticut Land Company's Connecticut Western Reserve, that they found a town at the summit of the developing Ohio and Erie Canal.

Although I have found no documentation on just where Mark Twain delivered his lecture, December 26, 1868, it seems likely it was somewhere within the historic district.

The Tecumseh Downtown Historic District is a historic district comprising the downtown commercial area of the city of Tecumseh in Lenawee County, Michigan. It was designated as a Michigan Historic Site on January 16, 1976 and added to the National Register of Historic Places on April 17, 1986.

I have found no documentation linking Twain to this site but it does seem a good fit for his December 25, 1868 lecture:

SAMPSON HALL Size of stage 22 x24 Seating capacity 900 Eight sets of scenery Rent one night $15 two nights $25 three nights $30 one week $50 License 82 Will share with good attractions Address AH Sleater Manager or Homer Green Agent Seats sold at Western Union Telegraph Ofiice 

The plotted location is for the Eaton County Court House.  The actual location of Sampson Hall is unknown.

CHARLOTTE own Michigan Central Grand Rapids Division and Chicago & Grand Trunk Railroads 35 miles from Jackson 59 miles from Grand Rapids 26 miles from Battle Creek 112 miles from Detroit 18 miles from Lansing Population 3,500 County Seat of Eaton County Good Agricultural section iine Ash and Walnut Lumber region and Mercantile interests SAMPSON HALL Size of stage 22 x24 Seating capacity 900 Eight sets of scenery Rent one night $15 two nights $25 three nights $30 one week $50 License 82 Will share with good attractions Address AH Sleater Manager or Homer Green Agent Seats sold at W