Semaphore saints, a golden dragon's head, and a stone carved with religious warnings all call this cathedral home.

This medieval church is not only notable for its architecture, but also its connection with LGBTQ+ history.

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

One of the shortest streets in York has an especially odd name.

The first geometric self-supporting spiral stairs in Britain are a truly beautiful sight.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

This network of narrow, medieval passages has the most delightful name.

A haunting painting meant to capture the calamity of World War I.

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

This hidden oasis features a stunning view of the Hudson River and the Palisades from a castle-like museum.

The notorious headquarters of a corrupt political machine.

The site of the deadly Triangle Shirtwaist Factory Fire.

The most confusing clock in New York.

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

This magnificently macabre shield shows the power of chivalrous love in medieval times.

A set of medieval stained-glass windows tell the gruesome story of a Viking siege.

An impressive armored bronze effigy marks the tomb of one of the medieval era's greatest warriors.

The oldest working mechanical clock in the world.

The Columbia Road Flower Market is now open every Sunday, rain or shine.

A historic London pub with prison cells in the cellar and a "spy room" on the second floor.

A series of carved figures that scandalized British society.

A quiet, semi-secret square with statues of Mahatma Gandhi, Virginia Woolf, and a conscientious objectors stone.

Golden and naked, the figure that was once the highest point in New York is all that remains of the second Madison Square Garden.

The origin of this mechanical boy was a mystery until he revealed his maker by writing it in perfect cursive.