Stretching 277 miles in length and more than a mile deep, this vast canyon reveals layers of geologic time stacked like pages in a book. Standing on the South Rim, visitors can look out over colorful cliffs and winding trails that have drawn explorers, artists, and travelers for generations. The views change with the light starting with crimson at sunrise, golden at sunset, and every hue in between.

A relatively recent addition to Costa Rica's list of national parks is Tenorio Volcano National Park, home to its namesake Tenorio Volcano as well as its taller sister, Miravalles Volcano, also the highest mountain in the Guanacaste Mountains.

A religious center since the 4th century, it has numerous churches and religious sites. It is the fourth largest city in France, located in southern France near the border with Andorra.

Karnak Temple is a huge, open air complex and, after the Giza Pyramids, the second most visited historical place in Egypt. The largest religious building ever constructed, it sits on 200 acres—a true wonder of the world. Decayed pylons, chapels and temples make up this unmissable historical attraction near Luxor.

Caernarfon, a town in northwest Wales, is famed for its medieval heritage, most notably Caernarfon Castle, a UNESCO World Heritage Site built by Edward I in the late 13th century.