Guns that have been defending San Francisco since 1904.

A mysterious painting of the self-declared Emperor of the United States watches over a local hof-brau.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

This abandoned horse racing track was an exercise in hubris from its inception.

The world's only teal arches exist in a city that cares more about its aesthetic than an Instagram influencer.

Every year, festive decorations appear on this juniper tree located in the median strip of a busy highway.

What is the Thing?

An homage to everyone's favorite prehistoric cartoon family.

See massive fossils that are over 200 million years old in northeastern Arizona.

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

A unique piece of graffiti offers a little slice of local history and mystery.

This Oakland fairytale kingdom, fiercely devoted to childlike whimsy, was an early inspiration for Disneyland.

World's largest collection of serial killer artwork and other macabre exhibits.

This strangely dressed taxidermy creature has a heartbreaking story.

A wonderfully eccentric Victorian-era museum and library.

One of England's most famous churches hides a pair of little known architectural treasures.

This skewed English house has looked like it's going to fall over for centuries.

One of the few standing Roman lighthouses and a labyrinth of tunnels are a couple of the secrets at this historic castle.

This clifftop arch is a natural stunner.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

Go inside to really appreciate this 500-year-old technological masterpiece.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

The first permanent memorial to a unique secret weapon of World War II.

Once a year, at exactly 11:11 a.m., this monument comes to life.