A clock set into the concrete outside a Manhattan jeweler has been telling time underfoot for over a century.

A working steam clock, one of only a few in the world, located in Vancouver's Victorian Gastown.

This long, dark tunnel is open to hikers, but those without lights are known to get confused even on the straight path.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

These WWII-era murals were initially booed as a libelous portrayal of the American dream but have survived multiple attempts to have them destroyed.

This landmark cemetery in Boston was created more than 300 years ago.

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

The site of Paul Revere's historic two lantern warning.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

A walk through the historic city center, under the streets of Seattle.

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

A giant Troll lurks under one of Seattle's oldest bridges.

Statue of Lenin, from Cold War era Czechoslovakia, now in a neighborhood of Seattle.

A beautiful final resting place for some of the noteworthy deceased.

From a neon Rapunzel to a bike traffic meter to a street fair color scheme, the most opened drawbridge in the US is a veritable art gallery.

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

A wall of chewing gum moonlights as collective art.

Jurassic Park—A Still Life.

A small flooded ghost town with a few scattered structures remaining.

A towering tribute to decisiveness stands on the spot where Brigham Young and his followers decided that this must be the place.

A hidden garden of stones engraved with scriptures, a Joseph Smith Sphinx, all carved by one man.