Mainland
Greece is well known as a cheap travel destination. However,
Athens is particularly inexpensive and perfect for an adult trip. Here, you can score three or four-star hotels for as little as $75 per night plus $3 beers and cheap eats galore. Spend your adult time wandering the ancient city, noshing on Souvlaki and viewing historic ruins like the Parthenon and the Temple of Olympian Zeus.