Constructed along the shores of Lake Zurich, this pavilion is a walk-through work of art.

The largest catacomb system in the world.

Featured in one of the most iconic scenes in cinema history.

One of the most poignant ruins of the Chornobyl nuclear disaster, the local football team's stadium has been quickly reclaimed by nature.

This attraction was abandoned after the Chornobyl disaster.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

The dining hall that nourishes workers in Chornobyl's Exclusion Zone is also open to visitors.

340-foot statue built to honour the Heroes of the Soviet Union.

This 1000 year old relic-filled cave monastery and UNESCO World Heritage Site also hosts an amazing micro-miniature museum.

One of the world’s best microminiaturist, Nicolaï Siadristy displays his lifetime of tiny creations in this museum.

A subterranean house of worship carved right out of the bedrock.

One of the oldest and most significant collections of Ancient Egyptian archeology outside of Egypt.

Now an entertainment complex, the Lingotto building was once an avant-garde auto factory with a test track on the roof.

Venice's island of the dead.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

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

Built to repay the sins of the father, this church is home to one of the most valuable works of Western art.

The world's oldest surviving anatomical theater, where "the dead are pleased to help the living."

This Stockholm art museum integrates many of its pieces into the surrounding outdoor areas and natural landscape.

It houses the remains of a 17th-century version of the Titanic.

This gem from the industrial age helps visitors and residents alike traverse hilly Stockholm.

This chimerical bridge/tunnel appears to dead end right into the sea.

A 19th-century subterranean reservoir repurposed as a contemporary art cave.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.