Places piegem Wants to Go

Not far from a popular beach, an unfinished, abandoned mansion for Bulgaria's last communist dictator.

This 18th-century project to build the world's tallest gravity dam was never completed.

The palace for King Gustav III was never completed, but the foundation remains tucked away in this city park.

The construction of a new church near Venosa was started in the 11th century, but never finished.

An observatory with a 54-meter-wide radio telescope sits in the mountains of Armenia.

This cemetery of rusting Soviet-era steam locomotives and train cars offers an apocalyptic glimpse into a bygone era.

Ancient snack bar of the Roman Empire re-opened.

A marvel of Byzantine engineering under the streets of Istanbul.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

A sculpture made of 10 Cadillacs as a monument to the “Golden Age” of the American automobile.

Austria's very first and only nuclear power station was completed but never used.

A real Hawker Hunter jet in the middle of Basingstoke.

This replica pays tribute to the first powered and sustained flight in the United Kingdom and the eccentric aviator who enabled it.

A life-size replica of a Spitfire that sits in a quaint suburb.

This sculpture of a pylon is upside down and askew, as if its main purpose is to confuse passersby.

A granite plane marks the site where a French aviator completed the first airplane flight across the English channel.

The lasting remains of the Balloon Section of the British Armed Forces.

This round structure dotted with portals is one of several pieces scattered throughout Lancashire.

One of London's lost rivers runs through a pipe over the tracks of this subway station.

Paul McCartney, Joy Division, and many others created era-defining music at this former recording studio.

The world's smallest Austen museum is inside an unassuming phone booth.

On this small spit of land, the person who runs the public house is considered the King of Piel Island.

This unique collection of lawnmowers includes vintage blueprints and automatic robot mowers.