<P> The Congress Plaza Hotel is located on South Michigan Avenue across from Grant Park in Chicago at 520 South Michigan Avenue . After opening for business in 1893 , for the World 's Columbian Exposition , the hotel underwent two major expansions and renovations ; it now features 871 guest rooms and suites . Its 11 story edifice was originally designed by architect Clinton J. Warren as an annex to the Auditorium Theater across the street . The two buildings were linked by a marble - lined underground passage called Peacock Alley . In 1902 and then in 1907 , the firm of Holabird & Roche oversaw the design and construction of two additions , bringing the total complex up to 1 million square feet . </P>
<P> The Congress Plaza Hotel is located on South Michigan Avenue across from Grant Park in Chicago at 520 South Michigan Avenue . After opening for business in 1893 , for the World 's Columbian Exposition , the hotel underwent two major expansions and renovations ; it now features 871 guest rooms and suites . Its 11 story edifice was originally designed by architect Clinton J. Warren as an annex to the Auditorium Theater across the street . The two buildings were linked by a marble - lined underground passage called Peacock Alley . In 1902 and then in 1907 , the firm of Holabird & Roche oversaw the design and construction of two additions , bringing the total complex up to 1 million square feet . </P>
when was the congress hotel in chicago built
when was the congress hotel in chicago built
1893
1893