Flagstaff

Small but surprisingly thorough, this museum is an ideal first stop on an exploration of northern Arizona...you’ll learn, through state-of-the-art exhibits, about the archaeology, ethnology, geology. — Frommer's

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.   — Atlas Obscura

Knowing that 900 years ago, this place erupted and you can still see the aftermath is pretty cool. — Afar Magazine

A set of Sinagua cliff dwellings, occupied from the early 12C to mid-13C, are built into the 350ft-high walls of Walnut Creek canyon. — Michelin Guide

The centerpiece is a mansion built in 1904 for Michael and Timothy Riordan, lumber-baron brothers who married two sisters. — Fodor's

Built in 1908 from volcanic remains of the nearby Mt Eldon eruptions, this stone house served as the county hospital for the indigent and was known as the 'poor farm' until its closure in 1936. — Lonely Planet

Located outside the town of Coolidge, this national monument preserves one of the most unusual Indian ruins in the state. — Frommer's

Ancient pueblos built into the base of a natural canyon wall.  — Atlas Obscura

A pedestrian-friendly area filled with historic 1900s-era buildings that have been converted to shops, restaurants, galleries, breweries and other watering holes. — U.S. News & World Report

This 1930s log cabin began as a taxidermy museum but is now a popular country music venue.  — Atlas Obscura

Subterranean lava flow formed this mile-long cave roughly 700,000 years ago. — Fodor's

Although the Arizona Snowbowl is still one of Flagstaff's biggest attractions, snowy slopes can be a luxury in times of drought. — Fodor's

An adventurous obstacle course in which participants ages 7 and older can test their limits on challenges like rope swings, scrambling walls and wobbly bridges, among dozens of other features. — U.S. News & World Report

Anyone seeking solitude beneath big, blue, open skies will love the crowdless scenery of this stunning national park — Lonely Planet