Travelling around the globe Crossword

Relating to the properties of spheres.
A person who is travelling or who often travels.
The amount of something that is permitted, especially within a set of regulations or for a specified purpose.
Relating to the Middle Ages.
The subjugation and assumption of control of a place or people by military force.
The action of coming to live permanently in a foreign country.
An official document issued by a government, certifying the holder's identity and citizenship and entitling them to travel under its protection to and from foreign countries.
The art or practice of designing and constructing buildings.
Done or eaten in the open air.
A strong underground prison cell, especially in a castle.
Take a holiday on a ship or boat following a predetermined course, usually calling in at several places.
Leave one's own country in order to settle permanently in another.
A type of aircraft which derives both lift and propulsion from one or more sets of horizontally revolving overhead rotors.
Travel some distance between one's home and place of work on a regular basis.
An arrangement whereby something, especially a seat or room, is reserved for a particular person.