One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

This whimsical fountain pays tribute to Toronto's four-legged friends.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

This impressive working clock made of 16,000 plants changes its flowers twice a year.

Only six people can sit inside this delightfully quaint sanctuary.

Chicago's Navy Pier on Lake Michigan was a training hub for aircraft carrier pilots during WWII.

A 400-foot-tall tall map of Chicago makes this once-ignored building stand out.

This memorial plaque remembers a strangely shallow maritime disaster known as "Chicago's Titanic."

An outdoor urban gallery of large-scale artworks by the world's most influential street artists.

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

A spectacular remnant of an Adler and Sullivan masterpiece that was destroyed in 1972.

Once at the center of U.S. finance, the historic Trading Room was meticulously recreated piece by piece and rebuilt in the Art Institute.

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

Over 1,000 pieces of one of the most niche art objects imaginable: the glass paperweight.

The last masonry skyscraper ever built reveals a transitional moment in architectural history.

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

This oceanside Reykjavik spot is speckled with recycled sculptures and large stones.

A bit of the Berlin Wall was gifted to the Icelandic capital to commemorate the 25th anniversary of German reunification.

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

This verdant, tree-lined Reykjavik graveyard is both enchanting and eerie.

Iceland's tribute to its thankless civil servants.

A small island abbey is the final resting place of many medieval Scottish monarchs, including the real Macbeth.

Looking strangely like Rome's Colosseum, this unfinished tower has dominated the skyline for over 100 years.