This small archipelago in northern Lake Superior was formed by a massive meteorite impact 450 million years ago.

Once used to calculate the various levels around the country.

This airport currywurst stand is made out of retro airplane parts.

At a Bangkok bistro, one pot of beef stew has been cooking non-stop for more than 45 years.

Captain America, Sub-Mariner, and the Human Torch were all born in this art deco Manhattan masterpiece.

Cheap pizza and all of your naughty bedroom needs housed in a stunning example of Art Nouveau architecture.

This semi-hidden Manhattan restaurant is based out of a loading dock.

This museum preserves the heyday of Puerto Rican coffee.

The hot chocolate here all stems from small, sustainable microproducers in Chiapas and Tabasco.

Gaze upon chocolate sculptures depicting everything from chariot races to Gaudí's famous church at this shrine to sweets.

Underneath the historic center of Mexico City, the remains of a temple dedicated to the Aztec god of the wind.

A grotesque collection of wax limbs depicting the symptoms of venereal disease.

A collection of machines designed to break things for science.

A novel collection of medical curiosities housed in an 18th-century surgeon training academy.

This exhibit pays tribute to the “humble tinkerer” who invented the implantable pacemaker.

This water tower commemorates the invention of the transistor on this site in 1947.

The official atomic museum of the United States explores the explosive and productive history of a much maligned energy source.

This pseudo-steampunk weapons facility is the world's largest wood and glue structure, and packs quite a wallop.

The most powerful laboratory radiation source in the world pulses with 1,000 times the electricity of a lightning bolt.

Where the embers of the Big Bang were first detected.

A Roman spa buried deep beneath the City of London.

The Great Fire of London and the regulation of one-way streets both started in this alley.

The 2,000-year-old beam is tucked within the pedestrian entrance to the old London Bridge.

The remains of Crystal Palace Great Exhibition of 1851.