The former headquarters of history's oldest megacorporation.

Architectureal fantasy quarter of Rome.

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

Claude Monet immortalized this medieval bridge in two of his paintings.

The top of society once luxuriated in this world-class hotel, which continues to impress, even in ruin.

A wood-and-steel sculpture garden featuring an artful interplay of nature and machinery.

An ancient rogue artist community hidden next to one of the world's most glitzy and glamorous cities.

Acres of natural wonders left behind by a socialite-turned-gardener.

The abandoned personal amusement park of the King of Pop.

Honoring the famed folktale author, this California museum looks like it belongs in the Black Forest.

Its vast collection details the history of this Santa Barbara beach town.

At 130 years old and 126 feet tall, it is the largest known example of the rare Torrey pine tree.

Inky sludge oozes to the surface of this beach thanks to a rare natural tar seep.

More than 450 years ago, an Italian nun became the first woman to paint the iconic subject.

In Florence's great Duomo, a 26 foot fresco honors a mercenary famous for attacking Florence.

Some say this medieval church is where the poet Dante married his wife and also met the love of his life.

Memorials at a Florence railway station remember the citizens who were deported from Italy and sent to extermination camps.

A slightly creepy gallery of plaster cast models in the same museum as Michelangelo's David.

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

Overlooked amid the tourist bustle of Florence, this museum is dedicated to the craft of stone inlay.

An incredible menagerie of more than 3 million taxidermied animals at the oldest science museum in Europe.

Renaissance hospital featuring a rotating door into which unwanted babies were dropped.

Secret refuge and museum of the Duke of Florence.

This house is a mosaic of tiled artwork sourced from local artists.