The Vennbahn is a former railway line that was built partly across what was then German territory by the Prussian state railways. It is now entirely in Belgium, because the trackbed of the line, as well as the stations and other installations, were made provisional Belgian territory in 1919 under an article of the Treaty of Versailles.
Vennbahn viaduct near Bütgenbach, Liège province, Belgium.
The former track is now part of a bicycle network
Kriegslok 50 3666 on Vennbahn at Raeren, 1 September 2001
An enclave is a territory that is entirely surrounded by the territory of only one other state or entity. Such territory can be a small territory as part of a larger one. Enclaves may also exist within territorial waters. Enclave is sometimes used improperly to denote a territory that is only partly surrounded by another state. Many enclaves are also exclaves, but some are not, for example Vatican City and San Marino and Lesotho are completely enclaved sovereign states.
Land for the Captain Cook Monument was deeded outright to the British government by the independent nation of Hawaii in 1877.
The John F. Kennedy Memorial at Runnymede, United Kingdom, placed on land given to the United States in 1965
