Question: Which amusement park is known as the "lost" land of Disneyland?
About the article "Disneyland", section "Lands".

Candidate passages:
An amusement park or theme park is a group of entertainment attractions, rides, and other events in a location for the enjoyment of large numbers of people.
An amusement park is more elaborate than a simple city park or playground, usually providing attractions meant to cater specifically to certain age groups, as well as some that are aimed towards all ages.
Theme parks, a specific type of amusement park, are usually much more intricately themed to a certain subject or group of subjects than normal amusement parks.
Amusement parks evolved from European fairs and pleasure gardens, which were created for people's recreation.
World's fairs and expositions were another influence on the development of the amusement park industry.
Amusement parks have a fixed location, as opposed to travelling funfairs and carnivals.
In common language, the terms theme park and amusement park are often synonymous.
However, a theme park can be regarded as a distinct style of amusement park.
A theme park has landscaping, buildings, and attractions that are based on one or more specific themes or stories.
Despite many older parks adding themed rides and areas, qualifying the park as a theme park, the first park built with the original intention of promoting a specific theme, Santa Claus Land, in Santa Claus, Indiana, did not open until 1946.
Disneyland, located in Anaheim, California, built around the concept of encapsulating multiple theme parks into a single amusement park is often mistakenly cited as the first themed amusement park, but is instead the park that made the idea popular. 
Pleasure Island was an amusement park located in Wakefield, Massachusetts.
The park, billed as the "Disneyland of the Northeast", was in business from 1959 to 1969.
During its short existence it went through several owners and was financially handicapped by New England's relatively short summers.
Today, the land formerly occupied by the park is now Edgewater Office Park. 
Children's Fairyland, U.S.A. is a theme park for children, located in Oakland, California on the shore of Lake Merritt.
It was the first "themed" amusement park in the United States and the first amusement park created specifically for families with young children.
Fairyland includes of play sets, small rides, and animals.
The park is also home to the Open Storybook Puppet Theater, the oldest continuously operating puppet theater in the United States.
Fairyland was built in 1950 by the Oakland Lake Merritt Breakfast Club, a local service club.
The park was immediately recognized nationally for its unique value, and during the City Beautiful movement of the 1950s it inspired numerous towns to create their own parks.
Walt Disney toured many amusement parks in 1950, including Children’s Fairyland, seeking ideas for what turned out to be Disneyland.
He hired the first director of Fairyland, Dorothy Manes, to work at Disneyland as youth director, in which position she continued from the park's opening until 1972.
Numerous artists have contributed exhibits, murals, puppetry, and sculptures to the park.
Some of the better-known artists are Ruth Asawa and Frank Oz, who was an apprentice puppeteer in the park as a teenager. 
Hong Kong Disneyland is a theme park located at the Hong Kong Disneyland Resort on reclaimed land in Penny's Bay, Lantau Island. 
Disneyland Park consists of eight themed "lands" and a number of concealed backstage areas, and occupies approximately .
The park opened with "Main Street, U.S.A.", "Adventureland", "Frontierland", "Fantasyland", and "Tomorrowland", and has since added New Orleans Square in 1966, Bear Country (later Critter Country) in 1972, and Mickey's Toontown in 1993.
In 1957, Holidayland, opened to the public with a recreation area including a circus and baseball diamond, but was closed in late 1961.
It is often referred to as the "lost" land of Disneyland.
Throughout the park are 'Hidden Mickeys', representations of Mickey Mouse heads inserted subtly into the design of attractions and environmental decor.
An elevated berm supports the narrow gauge Disneyland Railroad that circumnavigates the park.