7 unusual postage stamps

1. Swarovski Crystal Stamps - Austria
2. Coffee Scented Stamps - Brazil
3. Cork Stamps - Portugal
4. Embroidered Stamps - Switzerland
5. American Idol Stamps - USA
6. Rock Dust Stamp - Gibraltar
7. CD-ROM Stamp - Bhutan

7 horror video game series

1. F.E.A.R.
2. Silent Hill
3. System Shock
4. Resident Evil
5. BioShock
6. Doom
7. Dead Space

7 of the most venomous snakes

1. Death Adder
2. Saw Scaled Viper
3. Philippine Cobra
4. Tiger Snake
5. Blue Krait
6. Eastern Brown Snake
7. Inland Taipan

7 of the most expensive paintings ever sold

1. The Card Players - Paul Cézanne - $250m+
2. No. 5, 1948 - Jackson Pollock - $140m
3. Woman III - Willem de Kooning - $137.5m
4. Portrait of Adele Bloch-Bauer I - Gustav Klimt - $135m
5. The Scream - Edvard Munch - $119.9m
6. Nude, Green Leaves and Bust - Pablo Picasso - $106.5m
7. Garçon à la pipe - Pablo Picasso - $104.2m