1
Niagara Falls
Nature preserve
Famous, towering waterfalls at the boundary of Canada & the United States, with tours & boat rides.
4.80 (123K reviews)
2
Iguazú National Park
National park
Expansive park with train rides to massive Iguazú Falls & a visitor center with an exhibition.
4.90 (93.5K reviews)
4
Travertines of Pamukkale
Tourist attraction
Natural thermal pools surrounded by white limestone, accessed by a walk over rough rocks.
4.60 (68.3K reviews)
5
Parque das Aves
Zoo
Forested zoo park featuring about 143 species of birds, plus some reptiles & butterflies.
4.70 (63.6K reviews)