This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

The preserved arm of a third-century sorcerer is believed to have the power to lift curses and spells.

This once-derelict building is now one of the most beautiful bookstores in the world.

There's a labyrinth of manmade tunnels stretching for over an acre beneath Bristol.

The Bristol Camera Obscura housed in an ancient windmill.

England's steepest street has such a drastic incline that locals tie their parked cars to lampposts when it gets icy.

The abandoned funicular tunnel was a secret base for the BBC during World War II.

With lush plants and flowers, huge trees, ponds, and hidden monuments, this place feels a bit like discovering Narnia.

Since 1768, the pillar at Guildhall Market in Bath has been a hub of economic transactions.

Created by one of England's most prolific labyrinth designers, inspired by Bath city history.

Don't be fooled by this fake medieval facade even if it is almost 300 years old.

This abandoned five-star hotel is now a five-star urban exploration destination.

This fairy-tale, neo-Gothic church in the Azores is a world of magical realism.

A perfectly circular lake is formed by the crater of an ancient underwater volcano.

These small, triangular, colorful houses are a staple of Madeira Island.

This glass skywalk offers vertiginous views down the volcanic cliffs to the beach below.

Crafted from ocean litter, this sculpture highlights the ills of overconsumption.

A lush oasis full of vibrant plants and striking geometric displays.

A shrine-like museum entirely dedicated to soccer superstar Cristiano Ronaldo.

Men in rubber-soled boots serve as your "brakes" on this toboggan ride Hemingway described as "exhilarating."

An unassuming music museum recounts the rags to riches story of a dramatic Portuguese genre.

Sip cherry liqueur at a bar dating back to 1840.

Eat the ultimate iteration of Portugal's most beloved pastry.

Hidden beneath a beautiful overlook you’ll find the history of the city depicted in comic strip format next to a pay toilet.