Concrete strongholds stand guard over the Golden Gate.

The rusting remains of the largest assembled WWII fleet on the West Coast.

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

An extensive collection of ancient Egyptian artifacts and mummies.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

A fitting attraction for the corn capital of the world.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

A bizarre house filled with an astounding array of collections.

The small cliffside monastery known as the Tiger's Nest is said to be the meditation site of an 8th-century Buddhist master.

A tribute to the twin ideals of religion and patriotism, built by a Catholic priest from rocks, glass, and innumerable found items.

You were once able to challenge a chicken to tic-tac-toe at this park, which is now converted into the Aikman Wildlife Adventure.

The park that the Chicago Stockyards built.