This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

A small etching on the white marble parapet was written in runic script by a Viking mercenary.

The ornate miniature mansions were built for Istanbul's feathered residents.

2300-year-old Roman road connecting the empire.

Rome’s legendary peephole vista is also a former Crusader stronghold.

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

This strange bovine gargoyle is said to have been put in as a passive aggressive form of revenge.

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

Legend says this mysterious stone head belongs to a woman who was petrified by an alchemist.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

Where Venice's gondolas go for a tune-up.

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

According to tradition this is the oldest church in Venice, but its actual age is a mystery.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

The pile of books behind the dignified writer gave the statue a most undignified nickname.

This Roman statue is missing a limb from when the Venetians stole it from Constantinople during the Crusades.

Thousand-year-old Viking runes adorn an ancient Greek lion at the entrance to the Venetian Arsenal.

Skulls and skeletons are omnipresent in this church dedicated to souls trapped in purgatory.

This monumental fountain has moved around the city multiple times.

This medieval city gate is now a blend of the past and the modern world.

The Habsburgs' royal collections of art and wonders.

The final resting place for the remains of 143 Habsburg royalty.

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