A walk through the historic city center, under the streets of Seattle.

What happens when a sculptor has to find a way around a 100-year-old copyright.

A working steam clock, one of only a few in the world, located in Vancouver's Victorian Gastown.

A bypass decorated with large wooden troll carvings.

More than 5,000 contemporary and "historic" mustards from around the world.

One of the largest aviation events in the world brings half a million aircraft enthusiasts to Wisconsin each year.

An architectural oddity hides in plain sight on this iconic London bridge.

At Monet's beloved home you can still see the Japanese bridge, waterlilies, and weeping willows that were the subjects of some of his most iconic paintings.

The celebrated eyesore created by starry-eyed sweethearts.

This bridge was constructed from the rubble of the infamous Bastille.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

This beautiful 19th-century temple stands atop the ruins of its predecessor.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

The tallest statue in Italy is also one of the world's tallest statues of Jesus.

Two stone columns flank the grand Venice square, but there were supposed to be three.

The Iowa state contender for largest pan in the world oddly only comes in second or so.

A hidden barn-sized rendition of Grant Wood's most famous, and most parodied, painting.

A series of waterfalls and pools that flow through the 'Ohe'o Gulch and into the ocean.

A monument commemorating the role of Alaska's native Tlingit guides in the Klondike Gold Rush.

Originally a brothel during the Klondike Gold Rush, this bar once used dolls to denote when ladies were working.

Running under an entire mountain, the longest highway tunnel in North America is kept fresh using portal fans and jet fans.

A historic freight system that found the true gold rush is in tourism.

This small city where almost everyone lives in the same building can only be reached via North America's longest tunnel.

A trading post in the North Pole where children send letters.