Minnesota's highest point is a scenic vista marked by a plaque and armies of mosquitoes.

A bizarre house filled with an astounding array of collections.

A watering hole where the options for seating include a bar, patio, or subterranean cave.

The highest point in North Carolina and the United States east of the Mississippi River, Mount Mitchell is named after argumentative explorer Elisha Mitchell.

Unlike many reclaimed, abandoned mines, this Canadian cave system is still just a dangerous maze.

Stay overnight in the world's most sleekly designed rabbit hole, free of charge.

These sprawling mines once served as a source of plaster and today serve as a storage facility.

This observatory comes complete with three separate telescopes and a dedicated community of amateur and expert astronomers.

You can climb to the summit of Black Mountain, as long as you sign the waiver.

The lovely lake that was naturally dammed, then naturally destroyed, then unnaturally saved.