After protestors toppled a statue of a 17th-century slave trader, the pedestal where it once stood remains unoccupied.

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

The Bristol Camera Obscura housed in an ancient windmill.

You can soak in three relaxing pools filled daily by the tide.

The longest eruption in the history of La Palma originated with this volcano in September 2021.

This mountaintop observatory is home to one of the world's largest reflective telescopes.

The four landings commemorate a royal visit to Europe's biggest observatory.

The world's largest single-aperture telescope resides in the Canary Islands.

Volcanic rocks ground down into sand make this Spanish beach as black as night.

A statue commemorating the island's tradition of dancing dwarves in Napoleon hats.

This replica of Columbus's famous ship houses the history of La Palma's maritime importance during the Age of Exploration.

These wooden balconies that are both decorative and functional.

An underground city of salt.

At first glance, this area seems like just another city park, but the lush landscape hides a dark past.

This Polish cave has housed a dragon, a brothel, and an enduring legend.

Real bones which are said to have belonged to a Polish dragon.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

360° views of the city plus five floors of optical illusions and hands-on science.

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

Protecting the dead from opportunistic body snatchers.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

There are plenty of wonderful panoramic vistas in Edinburgh, but not many are hidden smack in the middle of the Old Town.

These sculptures of various animals adorn the building that houses one of the capital's least known museums.