A wall of chewing gum moonlights as collective art.

The tech giant built three enormous glass orbs in Seattle so employees could work inside a rainforest greenhouse.

Browse through roughly 130,000 titles in the world's largest independent video rental store.

Deep into the lower floors of Pike Place, find a date with fowl fate.

An old-timey peepshow allows visitors to gawk at some of the world's most freakishly large footwear.

This kitsch eatery is chock-a-block with bric-a-brac.

In a city crazy for seashells this museum educates and amazes visitors using the wonder of cast-off exoskeletons.

Inside the Wayne County airport is an amazing collection of lights and sounds.

This ferry carries passengers across the Rhine propelled by no engine or paddles but by the river's current.

Home to drunken tower-climbing goats... seriously.

This giant sculpture made of trash is a critique of society's wastefulness.

This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

Elaborate tile work in this railway station tells the story of Portugal.

One of the smallest bookstores on the planet.

Get in line for Lisbon’s most famous sandwich.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

One Portuguese poet described this cape, the westernmost point in mainland Europe, as "where the land ends and the sea begins."

The world's oldest bookshop still in operation.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

The "Jade Museum" is full of thousands of intricately carved works of art made from various precious stones.

A legendary music collector donated his entire collection to the entire city of Memphis.

The juke joint where legendary soul artists ate, drank, and made merry.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.