Mexico City is incredible for architecture, from the massive murals at the Palacio de Bellas Artes to the mid-century modern lines of Luis Barragán’s homes. December through April is the sweet spot because the rain stops and the skies stay clear for walking through the historic center.
A trip like this usually runs about $1600. If you use the Discover it® Cash Back, you get 0% intro APR for 15 months on purchases and balance transfers. This lets you pay for the trip in smaller chunks instead of hitting your bank account all at once.
The 0% intro APR is a tool to manage cash flow, not free money. If you have a remaining balance after the 15 months end, you will start paying interest on whatever is left over.