New York City preschools are notoriously expensive. Some even annually compare to the cost of a college. Your children deserve the best you can afford though, right? Well what about you?

A preschool for adults is now open in Brooklyn, N.Y. and, if you can afford it, Preschool Mastermind gives "students" the opportunity to feel like kids again. The fun doesn't come cheap though, as prices to attend range from $333 to $999 for one month-long experience.

"I realized all the implications of what we learn in preschool," founder Michelle Joni told ABC News. "People come here and get in touch with their inner child. It's magical."

Joni notes on the application that she has a partial degree in Early Childhood Education. 

According to the Preschool Mastermind website, students participate in activities such as arts and crafts, show and tell, snack time, music time, nap time and even class picture day, when students are encouraged to "dress" their "4-year-old best."

The best and worst parts of school, field trips and homework, are included too.

"We'll explore preschool concepts, like sharing and friendship, in order to apply and inject play, wonder, self-belief, and community into our grown-up lives," Joni wrote on the school's website.

"Parent Day" takes place at the end of the month and one woman will be bringing her parents, according to ABC News. Other students are bringing in their fellow adult friends that are seeking to rekindle childhood.