This collection of French root art looks like an indoor fairy wonderland.

A garden in Lisbon filled with giant porcelain creatures.

Little-known artist couple chose a former silk factory as the location for a museum dedicated to their work and other avant-garde art.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

In the Monastery of São Vicente resides a gallery devoted to a breathtaking collection of seashells.

A 12th century church completely covered in shells.

An early work of the architect Álvaro Siza Vieira, these swimming pools blend into the beach.

A small but charming botanical garden that contains many exotic plant species.

This giant sculpture made of trash is a critique of society's wastefulness.

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

Commonly acknowledged as the only public monument to the Devil himself.

A pair of gigantic baby heads greet passengers at Atocha Station.

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

A lush indoor jungle fills this bustling Madrid transportation hub.

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

A whimsical brother of the nearby Fallen Angel statue takes the falling part quite literally.

Sometimes called the Banksy of Madrid, Muelle was a pioneer of street art in the Spanish city.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

The abandoned "Red Star Train Graveyard" is the final rusting place for precious artifacts of train history.

A marvel of technology a century ago, this disused power station now offers a lovely glimpse into the industrial design of the past.

Time stands still at this serene burial ground in the center of Budapest.

A Hungarian optometrist's charming collection of Asian art and curiosities.

The romantic garden was the epicenter of the Hungarian art scene in the 1880s.

Sitting beneath an unremarkable residential building is a museum devoted to classic Pinball.