Oh boy, was Dreamland a popular name for entertainment venues!  I’ll name a few and provide links to pages as appropriate.

MINNEAPOLIS:

Dreamland Theater:  329 Plymouth Ave., October 7, 1911.

Dreamland Studio:  221 So. 5th Street, October 29, 1911.

Mrs. Beck’s Dreamland:  723 Nicollet Ave.

Dreamland Hotel:  21 North Washington Ave., July 30, 1914.

Dreamland Dance Hall:  315 Fifth Street So.

New Nicollet Dreamland: 723 Nicollet Ave. – February 1924

Dreamland Cafe and Annex:  3755-57 Fourth Ave. So – 1939.  A.B. Cassius

ST. PAUL:

Dreamland Theatre: 167 N Concord Street

Dreamland Dance Hall, 47 Eighth Street