A 2000-year-old Roman amphitheater lies just below Guildhall Yard.

Rebuilt remains of a temple to Roman god Mithras.

What might be the oldest living tree in London has survived fires, bombings, and estate agents.

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

The remains of an ancient Roman teenager are memorialized at the base of a modern London landmark.

Only a few pieces remain of the structure that carried people and goods across the Thames for some 600 years.

The last four extravagant street signs of London's historic banking street.

London's amazing modernist public square that never was.

The commemorative stone column conceals a secret laboratory.

A mysterious suspended hand greets unsuspecting visitors at the Tower of London.

Graffiti from the 16th and 17th centuries cover the walls of this part of the Tower of London.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

There's an exclusive Beefeaters pub hidden in the Tower of London.

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

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

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

An unusual round church in London with a Templar past.

Its collection includes a broad array of social, geographic, graphic design, and political history.

This landmark honoring a local beer brand is an iconic part of the Minneapolis skyline.

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

A huge monument to a bizarre book written by Turkmenistan’s longstanding dictator.

One New Hampshire alleyway has become home to a public gallery of feline art.

Honoring the star of the “The Bob Newhart Show” which took place in the city of Chicago in the 1970s.

The final resting place of the controversial chess champion.