It was completed in 2015.

Construction of Main Street U.S.A.

The attraction housed several live animal exhibits that included cranes, pelicans, and flamingos.

Florida Governor Claude Kirk and Roy Disney Announce Disney World Project in February 1967

AP

The second, pictured above, is Disney’s Contemporary Resort.

A ticket to enter the Magic Kingdom park cost$3.50at the time.

Today’s prices fluctuate between $97 and $114, depending on the season.

Disney World Construction Area in May 1969

Jim Kerlin/AP

Swiss Family Treehouse Under Construction

George Bryant/Toronto Star via Getty Images

Disney World Under Construction in November 1969

Alan Band/Fox Photos/Getty Images

Construction of Main Street U.S.A.

AP

Construction at Bay Lake

SDS/AP

Contemporary Hotel Under Construction in July 1971

SDS/AP

The Monorail in October 1971

AP

Grand Opening in October 1971

AP

Opening Day Parade Down Main Street, U.S.A.

AP

Julie Andrews Performs During Magic Kingdom’s Grand Opening

NBC/NBCU Photo Bank