This sculpture marks the spot where one of the greatest Roman rulers was proclaimed emperor.

An incredibly well-preserved piece of ninth-century Viking poop.

Makers and sellers of the original and finest York Ghosts.

A century-old tradition has culminated in a small but singular collection of feline effigies.

Follow the original medieval paths that wind through this intriguing section of the city.

The 700-year-old fortress was the site of Count Orlok's castle in "Nosferatu."

Tel Aviv's popular neighborhood went though endless waves of transformation.

A museum dedicated to a secret military hospital hidden beneath a castle in Budapest.

Museum dedicated to the terror regimes of Hungary.

At the center of London’s oldest roundabout stands an obelisk that was erected in 1771, but spent several decades elsewhere.

The Great Fire of London and the regulation of one-way streets both started in this alley.

The medieval woodcut-style artwork chronicles life in medieval London.

The ruins of a church destroyed by both the Great Fire of London and the Blitz, now turned into a peaceful garden.

Legend says these colorful, invasive residents are the descendants of birds released by Jimi Hendrix.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

Never actually a tree at all, this spot was the site of London's public hangings for nearly 600 years.

Classic game cookery takes center stage at what's widely considered London's oldest restaurant.

The fierce beast perches atop a pedestal marking where the historic City of London gates once stood.

A naturally mummified 2,000-year-old man.

The stickered marker pinpoints where the only maintained road in the United States crosses into the polar region.

This bridge was constructed from the rubble of the infamous Bastille.

A marvel of Byzantine engineering under the streets of Istanbul.

One of the world's tallest flagpoles.

This is the oldest Roman-made bridge in the city still existing in its original state.