From giant water bottles to early dinners, discover the funny habits that make American travelers instantly recognizable across Europe.

Buying a transit pass online is usually quick and convenient. Most riders expect the purchase to work immediately when they board. It can be incredibly frustrating when the fare reader rejects a valid purchase and disrupts the rest of the day.

You spent months planning around one unforgettable landmark. Then you discover it will be covered in scaffolding or closed entirely during your visit. That disappointment is real, but it does not automatically mean the whole vacation is a lost cause.

Grabbing a meal at a restaurant might seem like a universal experience, but the little details can be completely different depending on the country. Plenty of things Americans barely think about—like asking for free refills or taking leftovers home—can leave European visitors scratching their heads. Here are some of the restaurant habits that tend to stand out the most.

Traveling through Europe is an incredible experience, but it's easy to forget that everyday customs can be very different from what you're used to back home. From how people order coffee to how loudly they speak on public transit, small habits that seem perfectly normal in the United States can instantly signal to locals that you're a visitor. Knowing a few of those differences ahead of time can help you blend in a little better and enjoy a smoother trip.