Places Ko Power Wants to Go

This former Baroque palace on the historic Calle Montcada is a rare architectural gem and was once the meeting place of an aristocratic scholarly society.

A temple to modernity, tucked away amid Barcelona's more well known museums.

18th century anatomical amphitheater of the Royal College of Surgery of Barcelona.

Mysterious Spanish catacombs of unknown origins.

A huge cathedral single-handedly constructed by one eccentric monk.

This funky former tobacco factory is one of the most striking examples of Madrid's cultural diversity.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

Abandoned for decades, trains still pass through the now-restored remains of one of Madrid's first metro stations.

One of the world's oldest universities houses an incredible collection of anatomical models, mummified body parts, and human bones.

The earliest known map to show America, discovered by accident at a Paris bookshop.

This massive fiberglass Gulliver turns every visitor into a Lilliputian.

Bask in the 19th century grandeur of an eccentric Freemason millionaire's private gardens.

Cliffside houses provide a spectacular view from their perch above the valley.

An unusual stroll through gentlemen's erotica demonstrates that pornography is timeless.

Wonderland replication in progress by one persistent man.

This semi-secret storybook hedge maze is also the oldest garden in the city.

A beautiful but toxic fountain of mercury.

A subterranean ice warehouse that has lain hidden beneath central London for over a century is now open to the public.

Floating pink tap installed for a flower show in London.

Following the trail of an old metro line, this scenic path is haunted by a creepy spriggan statue.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

Artists and musicians now rule over this former rail station.