The city of Manchester quietly unveiled this tribute to a 19th-century massacre.

This insurance company building reminds customers that witches, bears, and gnomes are out there, best be insured.

This colorful and fiery mural depicts the Irish folk story of the beloved hero Cuchulain.

This dreamy street will transport you to wintertime in Victorian England.

Once one of the largest rooms full of books in the world, this bookstore basement is still a treat for bibliophiles.

The last Victorian market in Belfast.

The pockmarks across the building's facade are remnants of the Blitz.

The charming storybook building now houses a small police museum.

A subterranean house of worship carved right out of the bedrock.

This irregularly shaped sea fortress has defended not one but three different sovereign states.

Legend has it that Napoleon Bonaparte fell in love with this Gothic church.

A 300-kilogram egg sculpture that embodied a neighborhood revival.

This former KGB building is now a museum memorializing the people who suffered during the Soviet regime.

Despite having a dome made of papier-mâché this tiny observatory has survived for over a century.

For part of the year, this innovative greenhouse is painted white to keep the plants from getting scorched.

The oldest stone house in Paris was built by its most famous alchemist.

One of the last umbrella repair shops in Paris upholds the nostalgic art of umbrella making.

A mechanized clock where a man fights off a dragon, crab, and rooster.

A series of abstract, silly sculptures represent the works of a great modern classical composer.

A Parisian exterminator's shop whose storefront displays stuffed rats hanging from traps.

A 16th-century fountain marks the site of a lost medieval cemetery once filled with mass graves.

Notorious artist squat renovated into legal studios.

Noirish green neon marks the location of one of the oldest private detective agencies in France.

The approximate spot where the last Grand Master of the Knights Templar was put to death.