This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

Two stone columns flank the grand Venice square, but there were supposed to be three.

A four story, football field-sized, nine-grotto creation made of shells, minerals, and rare stones.

A toweringly silly piece of modern art has been delighting locals since the 1980s.

One of two giant blue cockerel statues erected with an intentional double meaning.

This statue of Olympic hockey coach Herb Brooks immortalizes one of the greatest moments in American sports history.

Home to the Amorphophallus titanum "Corpse Flower," which is among the largest flowers in the world and also smells powerfully of rotting flesh when in bloom.

This bright yellow building is packed with sweet treats from all around the world, from chocolate-covered crickets to whoopie pies.

A bizarre house filled with an astounding array of collections.

The mayor made the declaration in 2004.

A museum dedicated to the history and exploration of both popular music and science fiction.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

This working class sculpture pounds his hammer all the livelong day.

A wall of chewing gum moonlights as collective art.

A massive sea stack famous for its appearance in The Goonies.

Church organ in the Philippines constructed out of bamboo.

The cemetery was built for the Spanish colonial elite, but its most famous residents were all buried in unmarked graves.

This old residential building was once the largest flour mill in the world.

The only arched bridge made of stone on the entire Mississippi River.

When flour explodes, it's not a pretty sight.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

This rare vessel mixed luxury with labor before being converted to a museum and sometimes haunted maze.

This posh mansion began as a family's estate and ended as the site of a murder ripped from the pages of a pulp novel.