The largest and most famous wax anatomical collection anywhere in the world.

Drink wine handed out through a window as part of an age-old tradition.

Venice's "Island of the Mad."

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

Architectural monsters are devouring this palace's every door and window.

A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

The oldest operating pharmacy in the world features 800-year-old recipes.

The doodles of a genius line the walls of a secret room under the Medici Chapel, where they were hidden for nearly 500 years.

Architectureal fantasy quarter of Rome.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

War-ravaged ruins of a Benedictine monastery founded in the early 12th century, later rebuilt into a fortress.

The amazing wonder cabinets of a very rich Austrian archbishop.

Terrifically morbid cemetary and site of famous Paracelsus' grave.

Trick water gardens from 1619 featuring a 200 piece mechanical theater powered by water.

Macabre astrological automaton clock dating to the late 1400s.

Once a luxurious flagship of the Soviet Union, this Brutalist structure remains a landmark of Tashkent’s communist past.

Controversially restored in the 1970s, this giant 15th-century mosque is shrouded in legend.

Prowl through this sprawling bazaar under a massive Soviet-era dome for delicious eats.

An underground world of gorgeous, palatial metro stations designed as a nuclear shelter complex.

This "tower of death" has acted as an observatory, a religious hub, and an executioner's lair.

Ancient barriers wrap around what was once an important stop along the Silk Road.

Light still pours into the ruins of this ancient Islamic observatory.

The Avenue of Mausolea is a series of grand palatial tombs.

A massive collection of petroglyphs dating back some 40,000 years.