In the past, Renaissance sex workers were encouraged to entice customers on this bridge.

An iron dragon with a long neck covered in feathery scales perched above one of Venice's most popular squares.

As can be expected from a centuries-old church built in a canal city, the undercroft of this house of worship is beautifully flooded.

Two stone columns flank the grand Venice square, but there were supposed to be three.

The topiary maze at the Habsburg hunting lodge.

Celebrate the history of the lucky chimney sweep.

This museum promotes informed contraception by documenting its often secret past.

A history of heat is on display at this unique Austrian museum.

Giant WWII fortresses that fired 8,000 rounds a minute, now home to thousands of pigeons.

A set of outdoor stairs named in honor of a famous Austrian artist.

Beautiful Austrian natural history museum with carved ceilings and row after row of ancient taxidermy.

Annual technopop celebration of peace and love.

The solemn exterior conceals an opulent interior of this 17th century church.

One of Vienna’s oldest (and perhaps most haunted) alleys, allegedly with a bloody past that gave it its name.

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

Legends surround an ancient tree trunk riddled with nails for good luck.

Rediscovered underground chapel is one of the best examples of Gothic architecture in Vienna.

Baroque celebration of the end of the Great Plague of Vienna.

This former insane asylum now holds a pathological anatomy museum.

A spherical "micro-nation" in the heart of Vienna.

Along the edge of this fountain are 365 smaller fountains that represent the days of the year.

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

These two 15th-century metal rods allowed people to check if they were swindled or not.

A replica of the boarding house where many pioneering mangaka lived in the 1950s and ’60s.