This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

This historic hotel invented the chocolate brownie.

The palatial McDonald's that inspired Wesley Willis.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

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

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

A monument to the art of slicing people open.

The original goat tower, the one that started it all.

One of Ireland's most infamous prisons for rebels including men, women and children.

The ancient tomb acts as a calendar that keeps perfect time.

An unusual manor of stunning beauty, born out of a crippling disease.

A hugely vast Irish landscape of barren rock that stretches for miles.

This singular Irish dolmen is more Frank Lloyd Wright than upright stonehenge.

Pilgrimage site for star-crossed lovers.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

Go inside to really appreciate this 500-year-old technological masterpiece.

Spanning the El Chorro gorge, this pathway used to be one of the most dangerous crossings in the world.

The final resting place of the great navigator, or maybe his brother.

Thousands of narrow alleyways in an ancient medieval city make up what's believed to be the world's largest car-free urban zone.

This trio of Australian rock spires may have inspired aboriginal legend or just modern tourism.

A glacier pocked with ice caves and surrounded by rainforests.

Modern art meets modern convenience in possibly the world's most architecturally important public bathroom.

A New Zealand couple's shell-adorned home living room, now on display at the Canterbury Museum.