One of the two great things about the design of Adventureland is that it blends together so many different architecture styles. In the span of about one city block, you'll travel from the Victorian-era trappings of Swiss Family Treehouse and 1920's Jungle Cruise, past Middle Eastern bazaars and Polynesian tiki huts, to the colonial forts of the Spanish Main.
The other great thing about Adventureland is that it's the home of the Dole Whip, a pineapple and soft-serve ice cream treat that is, by itself, proof that American civilization was still advancing in the last years of the 20th century.
Also in Adventureland...
The Imagineers make the transition from Main Street's small town America to Adventureland's jungles of your imagination by using the vocabulary of Victorian architecture, the dominant style in America of the time period represented by Main Street as well as 19th Century British Colonial rule. The Crystal Palace, located at the end of Main Street, is the visual bridge to Adventureland and is modeled after historic Victorian buildings including New York's Crystal Palace, San Francisco's Conservatory of Flowers and England's Royal Botanic Gardens.
Adventureland's main pathway winds past the Victorian-era Swiss Family Treehouse, eventually opening onto an Arabian Bazaar containing the Magic Carpets of Aladdin. This attraction has added a strong center to the area and helps to orient you. The Jungle Cruise is below you to the left and Spanish Main beckons just ahead.
The plaza in front of Pirates of the Caribbean is a traditional element of towns created during the great age of Spanish exploration. The buildings on your left reflect the Spanish architectural style found throughout the Caribbean. On your right, the Imagineers reinterpret the same architectural vocabulary as Spanish-influenced buildings typical of the America Southwest circa 1850. This creates the equivalent of a filmmaker's "cross-dissolve" transition from the jungles of Adventureland to the deserts of the American frontier west without creating any visual contradictions to spoil your journey.