Dine on ceviche tacos in the sea at this floating restaurant only accessible by boat.

These gleaming gypsum sand dunes are the second-largest in North America.

The highest concentration of petroglyph sites in Gold Butte National Monument, plus an improbable early 20th-century dam.

One of the last Art Deco gas station still standing in Dallas.

Family-run for more than a century, this pizzeria makes a unique mustard pie.

A city park that sits on top of a freeway.

Have tea in a cemetery with a dazzling view of Istanbul.

Some of the oldest exposed rock formations in the United States.

An unusual slot canyon in the Aztec/Navajo Sandstone has a cross-section like an inverted old-fashioned keyhole.

This Rocky Mountain mansion was the luxurious home of the authoritarian leader of a company town.

A dark, narrow tunnel that leads to a charming lake and waterfall.

After retiring, Gary Pendergrass turned his yard into a wonderland of outsider art.

These beautiful garden buildings are among the oldest surviving greenhouses in the United States.

This massive redwood tree has stood in Northern California for nearly 2,000 years.

These unique "earth pyramid" clay columns can be found in ravines around the village of Tirolo.

This remote Colorado canyon is home to the second-largest collection of natural arches in the world.

A dangerous narrow-gauge railroad once traced a route through this striking canyon.

An impressive waterfall nestled in the cliffs of Idaho's Snake River Canyon.

Located in a remote part of a Louisiana wildlife refuge, this tree has been standing for more than 1,200 years.

A series of waterfalls create the illusion of perpetual rainfall in this hidden gorge.

This work of engineering is imbued with elegance and ingeniousness.

A whimsical roadside community of little metal people.

The damming of the Colorado River buried an iconic geologic formation before record-breaking drought brought it back.

A living museum of curated gardens honors 4,000 years of agriculture in the Santa Cruz River basin.