Travel

1. Airplane

1.1. Ticket

1.2. Passport

1.3. Fee

1.3.1. Business

1.3.2. Economy

2. Culture

2.1. Country

2.2. People

2.3. Language

3. Adventure

3.1. Rural

3.1.1. Land

3.1.1.1. Forest

3.1.1.2. Mountain

3.1.2. Water

3.1.2.1. Beach

3.1.2.2. Lake

3.1.2.3. River

3.2. Urban

3.2.1. Zoo

3.2.2. Theatre

3.2.3. Theme Park

3.2.4. Club

3.2.5. Museum