This museum explores how a 1973 volcanic eruption forever changed this small Icelandic island.

This abandoned, partly demolished building is now home to beautiful graffiti and murals.

The Hveragerði fissure runs through this unassuming shopping center.

Iceland's "Smoky Valley" is a beautiful river that is shrouded in a constant cover of steam clouds.

This stunning concert hall has become a symbol of Iceland's national recovery.

This black church sits alone among a field of lava rock.

This mountain fissure hides a secret path to a secluded mossy grotto within the rock itself.

Believed to be the birthplace of the United States Marine Corps.

This sinkhole in the Arizona desert is filled with carbonated, arsenic-rich water

This bridge's unique architecture honors nautical heritage and encourages self-awareness.

Climb to the top of its spiral spire for spectacular views of Copenhagen.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

This contemplative sculpture made out of old machine parts is meant to be the first in a series of sculptures around the world.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

The traveling wares of Denmark's most famous author.

This chimerical bridge/tunnel appears to dead end right into the sea.

The shiny silver little brother to Copenhagen's Little Mermaid statue.

Old Danish castle immortalized in Shakespeare's Hamlet.

18th century opera in its original splendor.

This strange portrait of six ladies with chicken bodies commemorates a count's dirty habits.

This wonky bit of historical taxidermy is experiencing a second life online.

Outside a Viking museum sits a modern-day runestone made by a Swedish runemaster using traditional methods.

It houses the remains of a 17th-century version of the Titanic.

Small Easter eggs are hidden in the ventilation holes of the city's newest trains.