(Portland, OR) -- A Northeast Portland landmark that draws thousands of visitors each year is celebrating its 90th anniversary. The 62-acre sanctuary, known as "The Grotto," is planning a formal celebration in September. The land was purchased in 1924 by a priest, who placed a down payment of three-thousand dollars, or every penny he had. The Grotto, with its lush greenery and tranquil waterways, is visited daily by people who want a peaceful or spiritual experience and a brief escape from their busy lives.