This head-spinningly bizarre Depression-era art cave is wall-to-wall quartz and Jesus.

Elvis's own personal tropical hideaway.

A Memphis park where you can walk the whole Mississippi River in one go.

Life-sized sculpture of a blue whale made of hand-recycled plastic trash.

These Pre-Columbian petroglyphs contain representations of birds, deer, hunters, and even some early Native flute players.

This award-winning men's bathroom was just too beautiful to not allow women to see.

This house's itty bitty size means no humans allowed.

This amazing example of Valencian Art Nouveau looks more like a cathedral than a public market.

With a facade that measures just 107 centimeters, this five-story building is one of the skinniest in Europe.

Artist Natividad Sánchez wrote a new ending for one of Roman mythology's tragic love stories.

Sometimes called the Banksy of Madrid, Muelle was a pioneer of street art in the Spanish city.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

This little sun pays homage to a massive gate that once stood at this location.

Built in 1931, this small passageway is believed to be the first modern skyway.

Each of these 87 large stones has a unique message. Together, they form part of the Minnesota Military Family Tribute.

World's largest carved onyx figure stands as a tribute to enduring peace.

A piece of the iconic wall found an unlikely new home in a Vegas bathroom.

The drama of nature in full effect in this Nevada State Park.

Named after an outlaw who used the basin as a hideout.

This former open-pit manganese mine is now a massive graffiti canvas.

This mostly abandoned shopping outlet is now adorned with beautiful graffiti and murals.

Brightly colored 30-foot-tall totems light up the desert sky just outside Las Vegas.