1) The United States operates under a two-party system, with the Democratic Party and the Republican Party being the two major political parties that compete in elections and shape the country's political landscape.

2) The Scottish Highlands, located in the northern part of Scotland, are characterized by rugged landscapes, mountains, and lochs (lakes). They are known for their natural beauty, rich history, and cultural heritage, attracting outdoor enthusiasts and those seeking tranquility in nature.

3) The Bank of England, established in 1694, is the central bank of the United Kingdom and one of the oldest central banks in the world.

4) The highest-grossing concert tour of all time is U2's "360° Tour," which earned over $735 million in ticket sales.