Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.

Washington's iconic carousel has a nice piece of Civil Rights history.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

Look closely and you’ll notice that the color changes a third of the way up the tower.

For 60 years, the academy had no permanent location until members voted Washington D.C. as its forever home.

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

Medicinal spa created with the discharge from a geothermal energy plant.

A relatively obscure antihero from the Marvel Comics universe adorns a wall inside Iceland's main airport.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

The bright red stripes streaking across the rocks are the star feature at this Icelandic waterfall.

Two volcanic lakes in an enormous crater formed in a prehistoric eruption.

The most powerful waterfall in all of Europe.

A sulfuric martian landscape that looks far better than it smells.

These ominous lava formations were said to be an entrance to the netherworld so of course they inspired a famous metal band.

This elegant arc of a waterfall marks a religious turning point.

Instead of solid circles, the stoplights in this northern Icelandic town have glowing red hearts.

This ancient structure is widely thought to be the oldest intact pyramid in the world.

Ozymandias’ time-keeping temple.

The largest known Ancient Egyptian obelisk.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.