Built in 1933, this unique ballroom is nicknamed the "floating dance floor."

A largely forgotten and touching neoclassical marble fountain overlooking a bear mound effigy.

143 feet of leaping muskie whose mouth can be used as a wedding venue.

Whimsical sculptures dot a woodland path surrounding their creator's old summer cottage.

A bizarre house filled with an astounding array of collections.

These Great Lakes sea caves accessible by boat in the summer turn into temples of ice reachable by foot in the winter.

Reverend Franzo Wayne King administers spiritual enlightenment through the music of the jazz legend.

San Francisco's most expensive hotel suite includes a secret passageway rumored to have been used by JFK.

The giant pair of sexy legs sticking out the window of this costume store have become its main draw.

This turn of the century masterpiece has a mysterious goaty interloper.

In this century-old literary safehouse, print is alive and well.

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

The randomness of this wall of lava lamps helps encrypt up to 10 percent of the internet.

A walk down memory lane in the heart of one of San Francisco's most notorious neighborhoods.

Radioactivity still cause for concern at this urban explorer's paradise.

Over 315,000 preserved amphibians and reptiles in jars.

Only hotel where you can legally launder money.

Once the fastest ship from San Francisco to Tahiti, the Galilee now lays in pieces in three different cities.

San Francisco's first World's Fair, dedicated to the wonders of California.

The first AIDS memorial chapel in San Francisco and one of only a few in the U.S.

Faceless white figures loom over the city from the rooftop.

The only visible piece of San Francisco's most famous shipwreck.

Forgotten and then destroyed by fire, this was once one of the largest saltwater swimming pools in the world.

This 19th-century church is now a popular roller rink.