Germany and Austria are best in the spring. You get the blooming gardens in Salzburg and the beer gardens in Munich before the summer crowds arrive. It is crisp, walkable, and usually cheaper than visiting in July.
A trip like this typically costs around $4200 for a couple. We can use a specific card strategy to break that cost down into monthly chunks instead of taking one massive hit to your savings account all at once.
The 0% intro APR for 15 months on purchases and balance transfers is a hard deadline. If you still have a balance after those 15 months, the standard interest rate will apply to whatever is left.