Travelers with Iranian passports may only be able to enter some 40 countries without visas or with visas on arrival, but that doesn't mean there aren't a lot of amazing places to see on that list.

Here are 9 of the most incredible landmarks Iranians can visit without dealing with any visa hassle.

1. Kaieteur Falls, Guyana

This powerful waterfall is among the tallest and widest in the world.

2. The Gibbon Experience, Laos

Enjoy a bit of adventure while also enjoying the breathtaking nature of Laos.

3. Nan Madol, Micronesia

These ruins were the capital of the Saudeleur Dynasty until around 1628.

4. Masaya Volcano, Nicaragua

This impressive and active volcano serves as a rich source of scientific knowledge for researchers.

5. Ngorongoro Crater, Tanzania

Let your breath be blown away while on safari in Ngorongor Crater and keep an eye out for lions, elephants and cheetahs.

6. Angel Falls, Venezuela

At 979 meters high, this waterfall holds the position of the world's tallest uninterrupted waterfall.

7. Fogo, Cape Verde

This heights peak of Cape Verde is also an active volcano that erupted recently in late 2014.

8. Amberd Fortress, Armenia

Located on the slopes of Mount Aragats, this 7th century ruin's name translates to "fortress in the clouds."

9. Indian River, Dominica

This river flows out to the Caribbean Sea and is famous as a filming location for Pirates of the Caribbean.