The Grotto (National Sanctuary of our Sorrowful Mother) is about a 10 minute ride from where I am staying in the northeast part of Portland, Oregon. It is a 62-acre shrine and serves as a place of solitude, peace and prayer for all faiths.
The grotto (cave) is an outdoor cathedral and there is also an indoor sanctuary, which are both located are at the base of a 110-foot cliff. They have an elevator which whisks you up to a manicured garden with paths along which are found many areas for one to pause and reflect. The signs (below) were tributes to several “mysteries” (Joyful, Sorrowful, Glorious and Luminous Mysteries) and were scattered through the gardens..
The labyrinth (below) is a stone maze and is based on a medieval labyrinth in France.
johnboystravelblog 
Very Cool!
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