This verdant, tree-lined Reykjavik graveyard is both enchanting and eerie.

Iceland's first pagan temple in 1,000 years is underway in Reykjavík.

This collection of unique liquids allows visitors to wander the waters of Iceland's glaciers.

This hobbit-y little hot spring may be the oldest spring used by humans in all of Iceland.

This wrecked airplane has been sitting on a black sand beach since the 1970s.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

A piece of baseball history is preserved in a Pittsburgh parking lot.

The oldest continuously-operated inn in the United States, once owned by Henry Ford.

A home covered with elaborate mosaic and other pieces of art.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

This museum offers an actual time machine back through Colorado's past.

This sidewalk tribute honors Colorado's great culinary creation.

An old train trestle re-imagined as an Egyptian obelisk.

This psychedelic tromp l'oeil seems to be beckoning drivers to crash into a wall.

This titanic steel chain linking two buildings was installed without permission but instantly beloved.

A handful of beehive kilns are all that’s left of a historic brick-making empire.

A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

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

Beautiful steampunk ghosts of early Massachusetts.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

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

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.