Meant to be one of the most extravagant hotels in the world, now an eerie, abandoned architectural gem in Mexico City.

The palatial McDonald's that inspired Wesley Willis.

This shop for all your super spy needs hides an educational secret.

In 2004, a Dave Matthews Band tour bus dumped 800 pounds of waste off a bridge and onto an unsuspecting tour boat below.

A journey begins with a single step, and for many, the road-trip of a lifetime started at this Chicago intersection.

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

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

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

Shop at the 200-year-old store where Julia Child stocked up on copper cookware.

What looks like a normal building is really a hollow facade hiding a subway vent.

This Parisian gem is one of the most incredible ethnographic museums in the world.

BDSM, 1930s Style.

Once a 19th-century brasserie, this McDonald's exterior celebrates Alsatian design and the "King of Beer."

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

A museum dedicated to one of Paris’s most famous residents, tucked into a corner of one of the city’s most famous squares.

A tribute shrine where the Space Invasion street art movement started.

These enormous, stern-faced statues greet visitors with lanterns, and sometimes costumes.

This one-room museum is dedicated to Norwegian history and jokes.

At the very tippity-top of Europe is a cliff from which you can view the midnight sun.

The world's most charming instant portrait studio also happens to be its smallest.

The gnarled remains of an exploded German bunker from World War II sit along a breathtaking fjord.

The world's northernmost aquarium looks like it has fallen over.

This functioning parish church is also the site of many concert performances due to its wonderful acoustics.

The great polar explorer is remembered in this far northern town, where he embarked on his final expedition.