A breathtaking 19th-century trail overlooks Lake Tahoe.

An unassuming plaque with a laminated poster shows the names of people who completed one of the most grueling journeys in Sweden.

This former monastery in Vietnam now houses a chocolate shop and museum filled with centuries-old taxidermy specimens.

A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.

The victims of a free-floating Japanese bombing during WWII are remembered by this stone monument.

An automaton perched above an classic clock and watch store

This supermarket in Shanghai appears to be a typical Chinese convenience store, but all of the bottles are empty and all the containers are filled with nothing but air.

Three floors above a 2,000-year-old royal tomb is a rare collection of ancient porcelain pillows.

Are these prehistoric metal pipes evidence of alien plumbers? Nope, but they are amazing nonetheless.

This weekly market in the remote oasis city of Hotan still has the atmosphere of the old Silk Road.

The western-most fortress on the Great Wall of China has gone from a strategic stronghold to a kitschy tourist carnival.

North Korea's massive art and propaganda factory now has an official gallery space in Beijing.

The world's largest statue of Mao Zedong looks out over the city where he discovered Communism.

Old batteries and frog skeletons reside in this lakeside monument to Alessandro Volta.

Featuring the last fully walkable parapet walkway in Europe.

A mysterious ancient elephant said to possess magic powers is now the symbol of a Sicilian city.

The oldest botanical garden in the world that technically isn't the oldest.

This curious building hides eclectic details like medieval gargoyles alongside naked angels and Art Nouveau mosaics.

Ham is serious business at the Prosciutto Museum-Serious, delicious business.

The Pope’s secret escape route.

This historic factory peddles classic toys from the picturesque English county of Devon.

A blunder resulted in these charming stone-lined streams becoming the target of a Nazi bombing.

The bell that once tolled atop a lost Edinburgh gate now hangs for all to see.

This abandoned hospital village was once viewed as an innovative way to deal with mental illness.