A bit of the Berlin Wall was gifted to the Icelandic capital to commemorate the 25th anniversary of German reunification.

This natural rock formation features seemingly unnatural vertical ridges that have been blamed on elves.

Inside this Icelandic greenhouse, geothermal energy keeps tomatoes warm and growing.

This African beach is home to thousands of rare mainland penguins that are known for their annoying voice.

Dancing skeletal figures pay homage to a medieval mural destroyed during World War II.

The walls of this medieval church are covered with perfectly preserved frescos, including a pristine example of the Dance of Death.

After the famous composer died in Paris, his sister snuck his heart out of the country to honor his wish that it be buried in their native country.

An Alaska livestock farm devotes itself to harvesting wool from creatures that once ran with mammoths and sabertooth tigers.

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

The shelves in the back of this thrift store are devoted to saving, not selling, retro tech.

A suburban museum tells the story of a historic transportation network and even provides rides in antique trolley cars.

Walk a trail through a historic Quaker town that outlawed slavery in 1777 and was a major waypoint on the Underground Railroad.

This dig site outside D.C. is known for its exceptionally high density of baby dinosaur fossils and dinosaur eggs.

A priceless collection of the Nation's cryptologic history.

The 72-foot giant escaped confinement in a large patch of mulch only to be reburied in the sandy shores of the Potomac River.

Despite violent work crews and massive delays this abandoned canal tunnel was built to last into the modern day.

The rock on which Moll Dyer was found frozen to death is said to still bear her handprint.

Isaac Newton's former home, where the famous apple tree still stands.