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

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

This beautiful, historic church looks like something out of a simpler past.

Scattered throughout London are ancient remnants of the city's former bounding wall.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

An unusual round church in London with a Templar past.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

Famously misunderstood wonder of the ancient world

When flour explodes, it's not a pretty sight.

A toweringly silly piece of modern art has been delighting locals since the 1980s.

The only arched bridge made of stone on the entire Mississippi River.

The oldest remaining frame residence in Minneapolis.

A stone face watches over the river.

The famed architect designed this Minnesota gas station of the future with a lookout tower.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

An architect's childhood fantasy treehouse made real.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

A spiritual vortex among the red rocks in Sedona.

The highest point in Arizona is an oddly snow-topped peak within the otherwise arid state.

A fitting attraction for the corn capital of the world.

The highest point in South Dakota contains the ashes of Valentine McGillycuudy, the "Holy White Man."

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.