Baltimore is a largest independent seaport city of US. It has about 8.1 million people and ranks as 20th largest city in the country.

National Aquarium in Baltimore
The aquarium is built within triangular glass building. They displays tiny organism from marine life from local waters to very large creatures. They count about more than 10,000 sea [...]

Athens is the capital city of Greece and measures about 39 km². It is the largest and oldest city with the age of 3,000 years. Athens ranked as the world’s 32nd richest city. It is a cosmopolitan city and a leading centre for economic, finance, industry, politics and cultural life.
The ancient tradition is still visible [...]