Travel

1. Barriers

1.1. Expense

1.1.1. Transportation

1.1.2. Accomodation

1.2. Time

1.2.1. schedule

1.2.2. conflicts

1.3. Culture

1.3.1. people

1.3.2. language

2. Attractions

2.1. Continents

2.1.1. Europe

2.1.2. Antartica

2.1.3. North America

2.1.4. South America

2.1.5. Asia

2.1.6. Africa

2.1.7. Australia

2.2. Nature

2.2.1. beach

2.2.2. mountain

2.2.3. volcano

2.3. Landmarks

2.3.1. amusement parks

2.3.2. museums

3. Reasons

3.1. Leisure

3.1.1. Vacation

3.1.2. sightseeing

3.2. Purposeful

3.2.1. business

3.2.2. visit family

3.3. Others

3.3.1. Pokemon Go

3.3.2. Bucket List

4. Avenue

4.1. Airlines

4.1.1. Qatar Arways

4.1.2. Air Asia

4.2. Air Mode

4.2.1. chopper

4.2.2. airplane

4.3. Land Mode

4.3.1. car

4.3.2. hoverboard

4.4. Water Mode

4.4.1. cruise

4.4.2. submarine

5. Activities

5.1. Fun

5.1.1. kayak

5.1.2. hiking

5.2. Thrilling

5.2.1. skydiving

5.2.2. food trips

5.3. Memorable

5.3.1. take documentation

5.3.2. make scrapbook/ journal diary

6. Necessities

6.1. passport

6.2. visa

6.3. money

6.4. luggage

6.5. clothes