With a floor made of thick glass, this observation deck offers a full view of Sunwapta Valley's mountains and rivers.

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

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

A close look reveals that the Scottish monument is just slightly off-kilter.

The highest peak in the United Kingdom has a history of physics, specters, and a pilgrimage of strange objects.

The cutest way to stay safe in traffic.

Internet rumors, often involving Icelandic singer Bjork, have abounded regarding this isolated outcrop of rock.

400-year-old garden, restored to beauty.

While most bridges allow roads to pass over water, this one allows water to pass over a road.

A poignant museum dedicated to the history of the Dutch resistance against Nazi occupation

A miniature city, once ruled by the Queen of the Netherlands.

A grassy pyramid named after a French battle.

One of two side-by-side totem pole parks dedicated to educating visitors on Tlingit history and culture.

Located inside Hoge Veluwe National Park, this museum began as the private collection of a prominent female art collector.

The largest airborne operation in history was launched to capture this bridge.

Budapest's Communist-era statues, banished to the suburbs.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

Organisms normally seen under a microscope decorate this church.

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

The ruins of a town wiped out by the second-largest earthquake in recorded history.

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

Four-story concrete hotel never opened to customers.

The king of U.S. high points towers over every other peak on the continent.

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