This Gothic castle-like portal is a testament to the amazing craftsmanship of the navvies who built the railway tunnel.

A quiet Sicilian village is home to a cafe that had an important role in "The Godfather."

The idyllic island where the philosopher Jean-Jacques Rousseau spent “the happiest time of his life.”

A fascist-era rural village abandoned since the early 1980s.

The oldest Hindu temple complex in Nepal serves as the seat of Nepal’s national deity, Lord Pashupatinath.

When in Idaho, sleep in a giant potato.

A 90-ton, gravity-defiant steam locomotive shoots for the skies in this bizarrely beautiful public artwork.

This whimsical garbage disposal facility receives around 12,000 accidental tourists each year.

This centuries-old wooden wonder was built in less than a year and is one of Europe's largest timber-framed churches.

The atmospheric ruins of a historic church can be found on a hill above the city of Oviedo.

This road earned its macabre nickname after hundreds of Iraqi troops died along it in 1991.

A hidden bar inside an ad agency has a deliberately misleading name, so employees can stay late under pretext of paperwork.

Hidden inside one of the world's most well-visited zoos is a secret plaque promising eternal life.

Megapodes incubate their eggs using the heat of an active volcano on this Pacific isle.

Its appearance in "Game of Thrones" may spur on the long-awaited restoration of this medieval shipyard.

Monks in the empyreal Alazani River valley have preserved their 1,000-year-old winemaking tradition.

Legend says the only thing buried within this magnificent tomb was a dog.

A little-known ruin with a convoluted history and a fascinating latrine drainage system.

The last occupied troglodyte dwellings in England weren't abandoned until the 1960s.

A hidey-hole sandwiched between cellphone, DVD, and jewelry stores features Tibetan delights.

A carriage house converted into what resembles an 11th-century English manor house

This 17th-century structure is a beautiful testimony to traditional Persian architecture

This small, hidden cove is home to abandoned boats.

A monument to Malchik, a stray dog who lived in a Moscow metro station until his tragic death.