Saint Mark's Cathedral is an Episcopal church. The designs for the cathedral were done in 1926 and ground was broken in 1928. It was dedicated in 1931, but remained incomplete due to budget issues. The financial situation became critical when the church was foreclosed upon in 1941. The Episcopal Church stepped in 1947 and payed off the mortgage completely.
A steeply sloped green area west of the church was purchased from St. Mark's in 1993 by the Seattle Parks Department and became the St. Mark's Greenbelt, with a handful of trails that are open to the public.
At the lower end of the greenbelt is a historically preserved house called Egan House. It was designed by Robert Reichert and is considered an excellent example of post World War II Modernist architecture. It was restored in 2003.
This is one of those places that are fun to visit on a nice Saturday when you're bored and don't know what to do with yourself. Getting up the trail is pretty decent exercise, and the church itself it beautiful in a simple way. There's a gift shop with christian stuff to buy if you're hankering for that kind of stuff.