London offers cozy pubs, a variety of museums and tons of history. It also offers $7 beers, $100 theater tickets and and sky-high hotel rates.
Nearby Dublin also has inviting pubs and historical sites, but you'll pay a lot less. And once there, the euro's weaker exchange rate compared to the British pound means Dublin can give you more bang for your buck for food, drinks and transportation.
Splurge: London
What you'll pay*: $4,400
Steal: Dublin
What you'll pay: $3,000
