This immaculate and historic water garden culminates in a massive stone dining table with an inset fountain for chilling the wine of the Cardinal's guests.

2300-year-old Roman road connecting the empire.

Before there were doorbells this bronze ear was installed for visitors to announce their arrival.

Started as a kitchen garden, now the second largest botanical garden in the world.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

An eerie, derelict amusement park in Berlin.

Annual technopop celebration of peace and love.

In the middle of a Vienna square, Roman ruins dating back some 2,000 years are on display.

A rooftop restaurant hides in plain sight atop Vienna's Palace of Justice.

The townhouse where the "Blood Countess" Elizabeth Báthory started her murderous career.

A silly medieval mural preserved on the side of a Viennese house.

Dine amidst exotic plants at this former royal greenhouse.

A small museum filled with over 1,000 clocks, and one particular clock calibrated to run until the year 9999.

An IT-specialist-turned-farmer reintroduces an Austrian food tradition while promoting snails as a sustainable "future food" option.

Metro station with a claim to rock n' roll fame.

The industrial monstrosity known as Bagger 258 is a colossal mining machine built in the DDR - but now left for dead in a German field.

This encrypted monolith protected a secret of Norse mythology by hiding in a church wall for over a millennium.

A hidden bathhouse in one of Stockholm's oldest and busiest neighborhoods is open to anyone who can find it.

Sweden's first nuclear reactor, R1, can be visited 25 meters underground.

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

A communal oasis on Lake Zurich.

This eclectic architectural gem played witness to Zurich’s colonial past.

Swiss vineyards in a UNESCO heritage site.

A mythically themed self-built sculpture park.