If you’re making a journey to Siem Reap, Cambodia, you’re more than likely going to find yourself at Angkor Wat. This massive complex of Buddhist temples has been around since the 12th century, when it was the political epicenter for Emperor Suryavarman II. And if all goes according to plan, the city of worship isn’t going anywhere.

However, to help maintain its structural and religious integrity, there are a few rules that the folks at Angkor Wat have put in place. This code of conduct is there for a reason—to protect the largest religious monument in the entire world, and keep it around for future generations to revel in. So for everyone’s enjoyment, here’s what to know about the Angkor Wat visitor’s code of conduct.

No Revealing Clothes

If you’ve done any traveling in Buddhist nations, you’ll know that covering up is the status quo. When you visit Angkor Wat, be sure to wear clothes that conceal your knees and shoulders. For women, long skirts are great, as well as shawls draped across your chest and shoulders. Whatever you wear, just keep in mind that you’re taking part in a religion that may not be your own, so it’s important to respect their customs.

No Smoking

Angkor Wat does not allow smoking of any kind, both for the wellbeing of the environment (cigarette butts are a major litter culprit) and the preservation of religious customs. So keep the cigarettes stowed during your visit—it’s definitely worth the wait.

Do Not Give Money or Candy to Children

You may encounter begging children during your time in Angkor Wat, but do the temple a favor and avoid giving them anything. This includes candy, money or anything else you may have on you. It keeps the beggars at bay and allows for a harmonious environment as you explore history in real time.

Respect the Monks

The last thing a worshipping monk wants is someone approaching them to take a selfie. Whatever you do, respect that these Buddhist men are here to practice their religion. Your best bet is to admire from a distance, avoid snapping photos and be grateful for the journey they are on.

Abide by the Signs

If a sign says “do not climb,” just don’t do it. You don’t have to prove yourself here, nor go out of your way to snap a memorable photo. The signs are there for a reason, and you don’t have to test the waters to find out.

Don’t Touch the Monuments

Angkor Wat’s ornately carved temples have been around for hundreds and hundreds of years. Cambodia wants to preserve the religious art for as long as possible. Straying from touching any of it is a key factor in its conservation.

No Littering

If you bring water bottles, snacks or anything else with packaging into Angkor Wat, carry it out with you and throw it in labeled garbage bins. Definitely don’t leave it on the ground; this place is far too beautiful to suffer from the pangs of littering.

A Long-Standing Masterpiece Calls to You

Angkor Wat—all 400 acres of it—is a welcoming place. Cambodian locals are eager for you to visit, so long as you do so in a healthy and respectful way. This Buddhist monument represents peace to its core, and the visitor’s code of conduct honors that. And trust us when we say that the rules won’t affect your enjoyment of the space whatsoever. In fact, they help you engage in a meaningful way, and grant you an experience you won’t soon forget.