Places Catmafu Wants to Go

This "floating railway" is one of the world's oldest monorail systems.

An elegant chandelier hangs over this ancient sewer chamber, now open for concerts and public tours.

This 600-year-old home seems to defy physics.

The final resting place of the famed German pilot, the "Red Baron."

The highest cold-water geyser in the world.

This collection of 20th-century toys is filled with a lifelong personal toy collection brought from the U.S. to Amsterdam.

A marble Lucifer hides behind the pulpit of this Gothic cathedral.

This subterranean studio is filled with fascinating kinetic art.

This beautifully designed star-shaped fort was the premier defense system of the late 1500s.

A late-medieval Dutch castle with trick fountains in its whimsical water gardens.

Underground attraction offering tours of the foundational ruins of a church nave that collapsed in 1674.

For years, the remains of this ancient Roman fortress were hidden under an orchard.

The giant scales in this museum can still tell if someone is one of the devil's brides just by weight.

Elegant marble and old vaults fill this historic Dutch bank turned office space.

Rumored to have been frequented by Vincent van Gogh, it's the only remaining genever producer in the Hague.

Strange secondhand shop showcasing taxidermy and oddies

Hidden within a Netherlands crater is a stone bed that lets those who lie in it see the sky as a curved surface.

One of the oldest masonic temples in the Netherlands, built in 1757.

The world's largest collection of ships in bottles.

Remarkably preserved body discovered in a peat bog.

The U.K.'s first underground railway line is now a lively thoroughfare for runners and cyclists.

This extinct volcano rises above Edinburgh and is special for its panoramic views over the city.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

The ruins of a medieval castle that once belonged to one of the most powerful families in the Netherlands.