1: Grand Prismatic Spring, Wyoming  

The Grand Prismatic Spring in Yellowstone National Park is the largest hot spring in the United States, and the third largest in the world, after Frying Pan Lake in New Zealand and Boiling Lake in Dominica. It is located in the Midway Geyser Basin.

Grand Prismatic Spring was noted by geologists working in the Hayden Geological Survey of 1871, and named by them for its striking coloration. Its colors match most of those seen in the rainbow dispersion of white light by an optical prism: red, orange, yellow, green, and blue.

2) Golden Gate Bridge

The Golden Gate Bridge is a suspension bridge spanning the Golden Gate, the one-mile-wide (1.6 km) strait connecting San Francisco Bay and the Pacific Ocean. The structure links the U.S. city of San Francisco, California—the northern tip of the San Francisco Peninsula—to Marin County, carrying both U.S. Route 101 and California State Route 1 across the strait.

It also carries pedestrian and bicycle traffic, and is designated as part of U.S. Bicycle Route 95. Being declared one of the Wonders of the Modern World by the American Society of Civil Engineers, the bridge is one of the most internationally recognized symbols of San Francisco and California. It was initially designed by engineer Joseph Strauss in 1917. The bridge was named for the Golden Gate strait, the channel that it spans.

3: Yosemite National Park

Yosemite National Park is in California’s Sierra Nevada mountains. It’s famed for its giant, ancient sequoia trees, and for Tunnel View, the iconic vista of towering Bridalveil Fall and the granite cliffs of El Capitan and Half Dome.

In Yosemite Village are shops, restaurants, lodging, the Yosemite Museum and the Ansel Adams Gallery, with prints of the photographer’s renowned black-and-white landscapes of the area.

4: Arches National Park

Arches National Park lies north of Moab in the state of Utah. Bordered by the Colorado River in the southeast, it’s known as the site of more than 2,000 natural sandstone arches, such as the massive, red-hued Delicate Arch in the east.

Long, thin Landscape Arch stands in Devils Garden to the north. Other geological formations include Balanced Rock, towering over the desert landscape in the middle of the park.

5: Nā Pali Coast State Wilderness Park

Nāpali Coast State Wilderness Park lies in the northwest of Kauai Island, Hawaii. It’s known for its towering pali, or sea cliffs, punctuated by narrow valleys, streams and cascading waterfalls. T

he Kalalau Trail is a steep footpath running through the park, between nearby Ke’e Beach and sandy Kalalau Beach. It cuts through 5 valleys, including the Hanakoa Valley, with its native plants and old agricultural terraces.